CVE-2026-79900
Heap overflow in KSL checksum initialization
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | fortra |
| Product | boks manager boks-server |
| Published | Oct 1, 2026 |
| Last Updated | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Fortra / BoKS Manager boks-server
0 < 8.1.0.24 0 < 9.0.0.7