CWE-391Base

Unchecked Error Condition

Incomplete in the CWE catalog · 26 CVEs mapped

26
CVEs mapped
6.3
Median CVSS
What it is

[PLANNED FOR DEPRECATION. SEE MAINTENANCE NOTES AND CONSIDER CWE-252, CWE-248, OR CWE-1069.] Ignoring exceptions and other error conditions may allow an attacker to induce unexpected behavior unnoticed.

Recent examples
—none
CVE-2026-56727

CVE-2026-56727 - UNKNOWN Severity Vulnerability

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary In Zammad's inbound PGP email processing, the return value of the gpg verification call was silently discarded. Regardless of whether gpg reported a valid, invalid, or missing signature, the handler unconditionally wrote sign: { success: true, comment: "Good signature" } to the article's security preferences. Impact Any sender could tamper with the body of a multipart/signed PGP email, or craft a message with an entirely fabricated or mismatched signature, and Zammad would display it to the recipient as cryptographically verified with a "Good signature" label. Users and agents relying on Zammad's signature indicator to confirm message authenticity and integrity would be misled into trusting modified or forged content. The vulnerability affects all inbound PGP-signed emails processed while the PGP integration is enabled. This issue is fixed in version 7.0.2.

no explanation yet
0%
epss
9.8cvss
CVE-2026-74900

CVE-2026-74900 - CRITICAL Severity Vulnerability

openssl_encrypt versions before 1.4.0 contain a critical vulnerability in pqc.py where KEM decapsulation failures silently fall back to simulation mode, generating a deterministic shared secret from only 16 bytes of the private key and publicly available encapsulated key data. Attackers who obtain 16 bytes of the private key can compute the shared secret and decrypt all ciphertext, as the fallback triggers on any KEM failure without raising an error.

CRITICALno explanation yet
1%
epss
9.8cvss
CVE-2025-71325

CVE-2025-71325 - CRITICAL Severity Vulnerability

picklescan before 0.0.27 contains a parsing logic error in the _list_globals function when handling STACK_GLOBAL opcodes, failing to track arguments in the correct range and allowing malicious pickle files to bypass detection. Attackers can craft pickle files with arguments at position zero to trigger unexpected exceptions and evade security scanning.

CRITICALno explanation yet
1%
epss
The record
Technical detail
CWE ID
CWE-391
Abstraction
Base
Structure
Simple
Status
Incomplete
References (1)