CVE-2026-5392CWE-125

wolfSSL heap OOB read in PKCS7 SignedData streaming

Low · published April 9, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
13.9
In the wild
Unconfirmed
What it is

Heap out-of-bounds read in PKCS7 parsing. A crafted PKCS7 message can trigger an OOB read on the heap. The missing bounds check is in the indefinite-length end-of-content verification loop in PKCS7_VerifySignedData().

The record
Technical detail
CVSS v4.0
2.3 · LOW
Vector
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00237 · 13.9th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-04-09T23:10Z
EPSS history
Timeline
  • 09 APR 23:10Z
    wolfSSL heap OOB read in PKCS7 SignedData streaming
    cvelistv5