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CWE-252

200 CVEs • Abstraction: Base • Likelihood of Exploit: Low

Unchecked Return Value

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

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CVEs (200)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Cesnet
1Libyang
Jun 17, 2026
May 20, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead to a crash.
1Cesnet
1Libyang
Jun 17, 2026
May 20, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in...Show more
In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.Show less
3Debian
FedoraprojectGoogle
3Chrome
Debian LinuxFedora
Jun 17, 2026
Apr 26, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Uninitialized data in PDFium in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted PDF file.
3Debian
FedoraprojectGoogle
3Chrome
Debian LinuxFedora
Jun 17, 2026
Apr 26, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
Uninitialized data in PDFium in Google Chrome prior to 90.0.4430.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted PDF file.
1Rust Lang
1Rust
Jun 17, 2026
Apr 11, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
In the standard library in Rust before 1.50.0, read_to_end() does not validate the return value from Read in an unsafe context. This bug could lead to a buffer overflow.
1Intel
1Graphics Drivers
Jun 17, 2026
Feb 17, 2021
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Unchecked return value in some Intel(R) Graphics Drivers before version 26.20.100.8141 may allow a privileged user to potentially enable a denial of service via local access.
1Xcb Project
1Xcb
Jun 17, 2026
Feb 9, 2021
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because transmutation to the wrong type can happen after xcb::base::cast_event uses std::mem::transmute to return a refer...Show more
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because transmutation to the wrong type can happen after xcb::base::cast_event uses std::mem::transmute to return a reference to an arbitrary type.Show less
1Xcb Project
1Xcb
Jun 17, 2026
Feb 9, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server...Show more
An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server.Show less
2Debian
Linbit
2Csync2
Debian Linux
Jun 17, 2026
Dec 30, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. It neglects to call this function again, as requi...Show more
An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. It neglects to call this function again, as required by the design of the API.Show less
1Apache
1Accumulo
Jun 17, 2026
Dec 29, 2020
N/A· v4
8.1 HIGH· v3
5.5 MEDIUM· v2
Apache Accumulo versions 1.5.0 through 1.10.0 and version 2.0.0 do not properly check the return value of some policy enforcement functions before permitting an authenticated user to perform certain administrative operat...Show more
Apache Accumulo versions 1.5.0 through 1.10.0 and version 2.0.0 do not properly check the return value of some policy enforcement functions before permitting an authenticated user to perform certain administrative operations. Specifically, the return values of the 'canFlush' and 'canPerformSystemActions' security functions are not checked in some instances, therefore allowing an authenticated user with insufficient permissions to perform the following actions: flushing a table, shutting down Accumulo or an individual tablet server, and setting or removing system-wide Accumulo configuration properties.Show less
2Dell
Oracle
3Bsafe Micro Edition Suite
DatabaseWeblogic Server Proxy Plug In
Jun 17, 2026
Dec 16, 2020
N/A· v4
5.8 MEDIUM· v3
5.0 MEDIUM· v2
Dell BSAFE Micro Edition Suite, versions prior to 4.5, are vulnerable to an Unchecked Return Value Vulnerability. An unauthenticated remote attacker could potentially exploit this vulnerability to modify and corrupt the...Show more
Dell BSAFE Micro Edition Suite, versions prior to 4.5, are vulnerable to an Unchecked Return Value Vulnerability. An unauthenticated remote attacker could potentially exploit this vulnerability to modify and corrupt the encrypted data.Show less
1Apple
1Macos
Jun 17, 2026
Dec 8, 2020
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. An attacker may be able to bypass Managed Frame Protection.
1Gnu
1Glibc
Sep 25, 2026
Oct 6, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an a...Show more
manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an application whose developer was unaware of a documentation update from 1999.Show less
2Google
Opensuse
2Leap
Tensorflow
Jun 17, 2026
Sep 25, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
In Tensorflow before versions 2.2.1 and 2.3.1, if a user passes an invalid argument to `dlpack.to_dlpack` the expected validations will cause variables to bind to `nullptr` while setting a `status` variable to the error...Show more
In Tensorflow before versions 2.2.1 and 2.3.1, if a user passes an invalid argument to `dlpack.to_dlpack` the expected validations will cause variables to bind to `nullptr` while setting a `status` variable to the error condition. However, this `status` argument is not properly checked. Hence, code following these methods will bind references to null pointers. This is undefined behavior and reported as an error if compiling with `-fsanitize=null`. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.Show less
1Ibm
2Business Automation Workflow
Business Process Manager
Jun 17, 2026
Sep 25, 2020
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
IBM Business Automation Workflow 18.0, 19.0, and 20.0 and IBM Business Process Manager 8.0, 8.5, and 8.6 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned i...Show more
IBM Business Automation Workflow 18.0, 19.0, and 20.0 and IBM Business Process Manager 8.0, 8.5, and 8.6 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 182715.Show less
1Accusoft
1Imagegear
Jun 17, 2026
Sep 1, 2020
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A code execution vulnerability exists in the DICOM parse_dicom_meta_info functionality of Accusoft ImageGear 19.7. A specially crafted malformed file can cause an out-of-bounds write. An attacker can trigger this vulnera...Show more
A code execution vulnerability exists in the DICOM parse_dicom_meta_info functionality of Accusoft ImageGear 19.7. A specially crafted malformed file can cause an out-of-bounds write. An attacker can trigger this vulnerability by providing a victim with a malicious DICOM file.Show less
2Debian
Videolabs
2Debian Linux
Libmicrodns
Oct 8, 2026
Mar 24, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not...Show more
An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.Show less
1Doas Project
1Doas
Jun 17, 2026
Oct 18, 2019
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. On platforms without strtonum(3), sscanf was used without checking for error cases. Instead, the uninitialized variable errstr...Show more
An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. On platforms without strtonum(3), sscanf was used without checking for error cases. Instead, the uninitialized variable errstr was checked and in some cases returned success even if sscanf failed. The result was that, instead of reporting that the supplied username or group name did not exist, it would execute the command as root.Show less
3Freerdp
LodevOpensuse
3Freerdp
LeapLodepng
Jun 17, 2026
Oct 4, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is al...Show more
HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.Show less
1Google
1Android
Jun 17, 2026
Sep 27, 2019
N/A· v4
6.5 MEDIUM· v3
7.1 HIGH· v2
In libskia, there is a possible crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android...Show more
In libskia, there is a possible crash due to a missing null check. This could lead to remote denial of service with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-132782448Show less