Buffer overflow in Fortra Boks Manager Boks-Server
CVE-2026-79900
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-79900?
- CVE-2026-79900 is a medium-severity vulnerability in Fortra Boks Manager Boks-Server, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-10-01.
- How severe is CVE-2026-79900?
- Medium severity. CVSS v3 base score is 6.5 out of 10.