What is CVE-2019-5953?

CVE-2019-5953 is a critical-severity vulnerability in GNU Wget, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-05-17.

How severe is CVE-2019-5953?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-5953 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in GNU Wget

CVE-2019-5953

Buffer overflow in GNU Wget 1.20.1 and earlier allows remote attackers to cause a denial-of-service (DoS) or may execute an arbitrary code via unspecified vectors.

Vulnerability class: Buffer Overflow

Published 2019-05-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.059 (93.2th percentile), scored 2026-11-01.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.059 · newest: 0.059 · change: 0.000

Affected products

GNU Wget
The GNU Projec Wget — versions 1.20.1 and earlier

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

www.gnu.org/software/wget/ (Product)
jvn.jp/en/jp/JVN25261088/index.html (Third Party Advisory)
support.f5.com/csp/article/K14560101
security.gentoo.org/glsa/201908-19 (vendor-advisory)
access.redhat.com/errata/RHSA-2019:2979 (vendor-advisory)
access.redhat.com/errata/RHSA-2019:3168 (vendor-advisory)

Frequently asked questions

What is CVE-2019-5953?: CVE-2019-5953 is a critical-severity vulnerability in GNU Wget, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-05-17.
How severe is CVE-2019-5953?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-5953 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.