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Fencer Vulns
critical 9.8

CVE-2019-10269 json

BWA (aka Burrow-Wheeler Aligner) before 2019-01-23 has a stack-based buffer overflow in the bns_restore function in bntseq.c via a long seq…

published 2019-03-29 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-2272

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

BWA (aka Burrow-Wheeler Aligner) before 2019-01-23 has a stack-based buffer overflow in the bns_restore function in bntseq.c via a long sequence name in a .alt file.

Patch / fix

  • burrow-wheeler_aligner_project burrow-wheeler_aligner 2019-01-23
  • bwa Debian 14, Debian 13, Debian 12 0.7.17-3

debian advisories DEBIAN-CVE-2019-10269

  • bwa Ubuntu 18.04 LTS 0.7.17-1ubuntu0.1
  • bwa Ubuntu Pro 16.04 LTS 0.7.12-5ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2019-10269

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-10269 updated cvss 5.1

bwa: stack-based buffer overflow in function bns_restore in fucntion bntseq.c

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.91% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • coreymhudson.github.io https://coreymhudson.github.io/bwa_vulnerabilties/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.