CVE-2026-16517

lowpriority · track · 0EPSS 0.001 · 1 %ileDEEUFRUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.10% (1st) EPSS

CVSS 2.9 · low

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · certfr

EPSS · scored 2026-10-27

A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.

cvss

Technical severity, 0–10. One row per scoring source.

2.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.12.9lowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.12.9lowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Lsecondary · secalert@redhat.com USexploitability 1.4 · impact 1.4

v3.12.7lowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190US

affected products (6)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Open Source libarchiveall versionscert_bundDEcpe:/a:libarchive:libarchive:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Red Hat Hardened Images< 3.8.8-3.1.hum1enisa_euvdEU

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2456libarchive: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2026-07-21csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in libarchive ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund certfr NVD CVE.org MITRE

published 2026-07-21modified 2026-09-01

references (9)

External citations — patches, advisories, analysis.

scry

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