CVE-2017-1000206

critical

Published 2017-11-17 · Modified 2026-05-13

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2

7.5

VIR risk

9.8

Description

samtools htslib library version 1.4.0 and earlier is vulnerable to buffer overflow in the CRAM rANS codec resulting in potential arbitrary code execution

Predictions

Exploit likelihood

97%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-1000206

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://github.com/samtools/htslib/blob/1.4.1/NEWS

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`1.4.1-1`
debian	bullseye	fixed	`1.4.1-1`
debian	forky	fixed	`1.4.1-1`
debian	sid	fixed	`1.4.1-1`
debian	trixie	fixed	`1.4.1-1`

Application impact

Vendor	Product	Versions	Fixed
htslib	htslib	`{"endIncluding":"1.4.0"}`

References

https://github.com/samtools/htslib/blob/1.4.1/NEWS
https://security-tracker.debian.org/tracker/CVE-2017-1000206

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.