CVE-2026-79900

boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start…

Risk score: 42/100
CVSS: 6.5 v3.1
Exploit chance (30 days): 0.2%
Published: 1 Oct 2026

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What to know

What it is: boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can supply an oversized,…
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 6.5 medium

References

https://www.fortra.com/security/advisories/product-security/fi-2026-013

Original description

boks_ksllogsd accepts a checksum algorithm name in the MD field of an authenticated KSL start message. Affected releases verify that OpenSSL recognizes the digest name but do not verify that the value fits in a fixed 16-byte checksum context field before copying it. An authenticated KSL client can supply an oversized, OpenSSL-recognized digest name and write beyond the end of the heap allocation.

Last activity 1 Oct 2026. Patch Forecast updates every hour.