What is CVE-2012-5867?

CVE-2012-5867 is a critical-severity vulnerability in Ht Editor Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-01-23.

How severe is CVE-2012-5867?

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

Is CVE-2012-5867 known to be exploited?

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

Buffer overflow in Ht Editor Project

CVE-2012-5867

HT Editor 2.0.20 has a Remote Stack Buffer Overflow Vulnerability

Vulnerability class: Buffer Overflow

Published 2020-01-23 · 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: 0.022 (81.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Ht Editor Project — versions 2.0.20

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

www.securityfocus.com/bid/47095 (VDB Entry, Third Party Advisory)
www.openwall.com/lists/oss-security/2012/11/14/15 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2012-5867?: CVE-2012-5867 is a critical-severity vulnerability in Ht Editor Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-01-23.
How severe is CVE-2012-5867?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2012-5867 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.