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CWE-757

30 CVEs • Abstraction: Base

Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.

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CVEs (30)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Redhat
1Build Of Quarkus
Jun 17, 2026
Jul 4, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
A vulnerability was found in quarkus-core. This vulnerability occurs because the TLS protocol configured with quarkus.http.ssl.protocols is not enforced, and the client can force the selection of the weaker supported TLS...Show more
A vulnerability was found in quarkus-core. This vulnerability occurs because the TLS protocol configured with quarkus.http.ssl.protocols is not enforced, and the client can force the selection of the weaker supported TLS protocol.Show less
1Westerndigital
9My Cloud Dl2100 Firmware
My Cloud Dl4100 FirmwareMy Cloud Ex2100 Firmware+6 more
Jun 17, 2026
Jul 25, 2022
N/A· v4
7.8 HIGH· v3
N/A· v2
The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was enabled to maintain compatibility with old or outdated home routers. By...Show more
The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was enabled to maintain compatibility with old or outdated home routers. By using an "SSL" context instead of "TLS" or specifying stronger validation, deprecated or insecure protocols are permitted. As a result, a local user with no privileges can exploit this vulnerability and jeopardize the integrity, confidentiality and authenticity of information transmitted. The scope of impact cannot extend to other components and no user input is required to exploit this vulnerability.Show less
1Silabs
5Zgm130s037hgn Firmware
Zgm2305a27hgn FirmwareZgm230sb27hgn Firmware+2 more
Nov 21, 2024
Feb 4, 2022
N/A· v4
8.1 HIGH· v3
4.8 MEDIUM· v2
The Z-Wave specification requires that S2 security can be downgraded to S0 or other less secure protocols, allowing an attacker within radio range during pairing to downgrade and then exploit a different vulnerability (C...Show more
The Z-Wave specification requires that S2 security can be downgraded to S0 or other less secure protocols, allowing an attacker within radio range during pairing to downgrade and then exploit a different vulnerability (CVE-2013-20003) to intercept and spoof traffic.Show less
1Dell
1Emc Streaming Data Platform
Jun 17, 2026
Nov 30, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
Dell EMC Streaming Data Platform, versions prior to 1.3 contain an SSL Strip Vulnerability in the User Interface (UI). A remote unauthenticated attacker could potentially exploit this vulnerability, leading to a downgrad...Show more
Dell EMC Streaming Data Platform, versions prior to 1.3 contain an SSL Strip Vulnerability in the User Interface (UI). A remote unauthenticated attacker could potentially exploit this vulnerability, leading to a downgrade in the communications between the client and server into an unencrypted format.Show less
1Philips
1Clinical Collaboration Platform
Jun 17, 2026
Sep 18, 2020
N/A· v4
6.5 MEDIUM· v3
3.3 LOW· v2
Philips Clinical Collaboration Platform, Versions 12.2.1 and prior, does not properly control the allocation and maintenance of a limited resource, thereby enabling an attacker to influence the amount of resources co...Show more
Philips Clinical Collaboration Platform, Versions 12.2.1 and prior, does not properly control the allocation and maintenance of a limited resource, thereby enabling an attacker to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Show less
2Bluetooth
Opensuse
2Bluetooth Core
Leap
Jun 17, 2026
May 19, 2020
N/A· v4
5.4 MEDIUM· v3
4.8 MEDIUM· v2
Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may allow an unauthenticated user to complete authentication without pairing credentials via adjacent a...Show more
Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key.Show less
1Redhat
6Jboss Data Grid
Jboss Enterprise Application PlatformJboss Fuse+3 more
Jun 17, 2026
Mar 16, 2020
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the...Show more
A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption. This could lead to a leak of the data being passed over the network. Wildfly version 7.2.0.GA, 7.2.3.GA and 7.2.5.CR2 are believed to be vulnerable.Show less
1Postfix Mta Sts Resolver Project
1Postfix Mta Sts Resolver
Jun 17, 2026
Jan 22, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.
1Novell
1Edirectory
Nov 21, 2024
Mar 2, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In Novell eDirectory before 9.0.3.1 the LDAP interface was not strictly enforcing cipher restrictions allowing weaker ciphers to be used during SSL BIND operations.
1Opensuse
1Libzypp
Nov 21, 2024
Mar 1, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content.