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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-14316

The revoked-key error path builds a human-readable failure reason using sprintf() into a heap buffer.

HIGH 8.1EPSS 0.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The revoked-key error path builds a human-readable failure reason using sprintf() into a heap buffer. The allocated buffer is too small for the final formatted message. When sprintf() writes the full message, it can write past the end of the heap allocation.

CVSS 3.1
8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS
0.22% probability · 12th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-122
Source
df4dee71-de3a-4139-9588-11b62fe6c0ff
EPSS trend
0%3%5%2 October 2026: 0.22%26 October 2026: 0.22%2 October 202626 October 2026

EPSS moved from 0.2% on 2 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.