CVE-2026-49423
When building the iovec array for a received TLS 1.2 CBC record, ktls_ocf_tls_cbc_decrypt() incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes.
Published Aug 19, 2026 · Updated Aug 31, 2026
The full analysis for this CVE is not ready yet, so this page shows the scores and scope from the public record. How CVEs are selected
Key Facts
Routine patching- CVE-2026-49423 is a low-severity vulnerability (CVSS 3.3).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS
3.3
EPSS (30-day exploit likelihood)
n/a
Exploit maturity
None known
ATLAS score
n/a
Outside the curated set
FAQ
Common Questions.
When building the iovec array for a received TLS 1.2 CBC record, ktls_ocf_tls_cbc_decrypt() incremented the iovec index for every mbuf in the chain, including mbufs that were skipped because they contained only TLS header bytes.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
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