What is CVE-2007-0158?

CVE-2007-0158 is a critical-severity vulnerability in Acme Thttpd, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-27.

How severe is CVE-2007-0158?

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

Buffer overflow in Acme Thttpd

CVE-2007-0158

thttpd 2007 has buffer underflow.

Vulnerability class: Buffer Overflow

Published 2019-12-27 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Acme Thttpd — versions 2007

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

taviso.decsystem.org/research.t2t (Third Party Advisory)

Frequently asked questions

What is CVE-2007-0158?: CVE-2007-0158 is a critical-severity vulnerability in Acme Thttpd, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-27.
How severe is CVE-2007-0158?: Critical severity. CVSS v3 base score is 9.8 out of 10.