CVE-2026-111158: medium-severity vulnerability in EarthScope libmseed
EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect
Published
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6.8epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
EarthScope libmseed through 3.5.4 contains a heap out-of-bounds read vulnerability in ms3_detect() in parseutils.c that reads past truncated miniSEED 2 record buffers. Attackers can supply a 40 to 47 byte buffer passing MS2_ISVALIDHEADER to msr3_parse() or ms3_detect(), over-reading up to 8 bytes and potentially crashing the process.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
EarthScope · libmseedpublic PoCs found — 1
cve_referencehackmd.io/@haind-pwn/libmseed-ms3detect-short-header-oob-readunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/EarthScope/libmseedhttps://github.com/EarthScope/libmseed/blob/d6e6ad306de5b7bdde072e5a5e3d58ddcc11abd8/parseutils.c#L192-L234https://github.com/EarthScope/libmseed/commit/c93a36a1381e944b59b10967342ee1cb94304223https://hackmd.io/@haind-pwn/libmseed-ms3detect-short-header-oob-readhttps://www.vulncheck.com/advisories/earthscope-libmseed-through-3.5.4-heap-out-of-bounds-read-via-ms3-detect