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CWE-476

5,846 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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CVEs (5,846)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
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Oct 19, 2026
Oct 15, 2026
2.3 LOW· v4
N/A· v3
N/A· v2
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have...Show more
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 and laterShow less
1Freerdp
1Freerdp
Oct 23, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRIT...Show more
FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection.Show less
1Freerdp
1Freerdp
Oct 23, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
FreeRDP versions from 3.0.0 before 3.32.0 contain a null pointer dereference in the rdpsnd channel when a fragment sets CHANNEL_FLAG_LAST without CHANNEL_FLAG_FIRST. A malicious RDP server can send a malformed rdpsnd PDU...Show more
FreeRDP versions from 3.0.0 before 3.32.0 contain a null pointer dereference in the rdpsnd channel when a fragment sets CHANNEL_FLAG_LAST without CHANNEL_FLAG_FIRST. A malicious RDP server can send a malformed rdpsnd PDU on a fresh channel to crash the client and cause denial of service.Show less
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Oct 15, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing-policy nexthop-ECMP matcher of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a routing-daemon denial of service via a specif...Show more
A NULL Pointer Dereference vulnerability in the routing-policy nexthop-ECMP matcher of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a routing-daemon denial of service via a specific BGP packet received while a nexthop-ecmp qualifier is attached to a BGP import policy.Show less
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Oct 15, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated remote BGP neighbor to cause a denial of service via a VPN-flowspe...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated remote BGP neighbor to cause a denial of service via a VPN-flowspec BGP update if it is readvertised and BMP post-policy RIB-out monitoring is configured.Show less
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Oct 15, 2026
Oct 14, 2026
8.2 HIGH· v4
5.9 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the DNS plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS). When multiple DNS qu...Show more
A NULL Pointer Dereference vulnerability in the DNS plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial-of-Service (DoS). When multiple DNS queries are received in a single flow session, where one query matches a Security Intelligence (SecIntel) feed and another query is sent for DNS Domain Generation Algorithm (DGA) analysis, an error in processing logging of these asynchronous tasks can lead to an FPC crash. The exact timing conditions are outside an attacker's direct control. This issue affects Junos OS on SRX Series: * All versions before 23.2R2-S7.7; * from 23.4 before 23.4R2-S8.13; * from 24.2 before 24.2R2-S5.5; * from 24.4 before 24.4R2-S4; * from 25.2 before 25.2R2-S1; * from 25.4 before 25.4R1-S2.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS on MX Series and Junos OS Evolved on ACX Series allows an unauthenticated adjacent attacker to cause a denial of service via an IGM...Show more
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS on MX Series and Junos OS Evolved on ACX Series allows an unauthenticated adjacent attacker to cause a denial of service via an IGMPv3 membership report received on a directly connected network.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to crash the routing daemon and cause a denial of service v...Show more
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to crash the routing daemon and cause a denial of service via an RSVP Path message.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a denial of service via a malformed RSVP Path message received on an EVPL...Show more
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a denial of service via a malformed RSVP Path message received on an EVPL LMP control channel.Show less
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Oct 16, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured MSDP peer or adjacent PIM sender to cause a denial of s...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured MSDP peer or adjacent PIM sender to cause a denial of service via an MSDP or PIM policy that uses AS-path expansion.Show less
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Oct 16, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote BGP peer to cause a denial of service when multiple UPDATEs occur over a sin...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote BGP peer to cause a denial of service when multiple UPDATEs occur over a single TCP session with 'bgp family l2vpn auto-discovery-only' configured.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent network attacker to cause a denial of service via a crafted RSVP packet w...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent network attacker to cause a denial of service via a crafted RSVP packet when MPLS-TE RSVP processing is enabled. The condition can terminate rpd and disrupt routing protocol sessions.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial-of-service condition via a malformed PIM Bidir m...Show more
A NULL Pointer Dereference vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial-of-service condition via a malformed PIM Bidir message.Show less
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Oct 15, 2026
Oct 14, 2026
6.7 MEDIUM· v4
4.4 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the na-grpcd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated attacker with access to the chassis-internal network to cause a denial of servi...Show more
A NULL Pointer Dereference vulnerability in the na-grpcd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated attacker with access to the chassis-internal network to cause a denial of service via a network message.Show less
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Oct 15, 2026
Oct 14, 2026
7.1 HIGH· v4
6.5 MEDIUM· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via LDP messages re...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via LDP messages received over an operational LDP session.Show less
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Oct 15, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a persistent routing-daemon denial of service via a s...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a persistent routing-daemon denial of service via a specific BGP packet when ephemeral configuration is used.Show less
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Oct 15, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the pkid component of Juniper Networks Junos OS allows an unauthenticated remote attacker to cause a denial of service via a malformed packet received during CMP enrollment or...Show more
A NULL Pointer Dereference vulnerability in the pkid component of Juniper Networks Junos OS allows an unauthenticated remote attacker to cause a denial of service via a malformed packet received during CMP enrollment or automatic certificate re-enrollment.Show less
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Oct 15, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP Flo...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.Show less
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Oct 18, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP neighbor to cause a denial of service via a BGP route update when sp...Show more
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP neighbor to cause a denial of service via a BGP route update when specific routing-policy resolution-map and policy event-tracing configuration is enabled.Show less
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Oct 18, 2026
Oct 14, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured BGP peer to cause a denial of service via a BGP UPDATE when ISO-VP...Show more
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured BGP peer to cause a denial of service via a BGP UPDATE when ISO-VPN and egress-protection configuration is enabled.Show less