Usermin 0.980 through 1.x before 1.660 allows uconfig_save.cgi sig_file_free remote code execution because it uses the two argument (not th…

published 2025-04-28 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2015-2190

cvss: 9.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

Usermin 0.980 through 1.x before 1.660 allows uconfig_save.cgi sig_file_free remote code execution because it uses the two argument (not three argument) form of Perl open.

Patch / fix

fixed in 1

Usermin Usermin 1.660

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 18 mo ago (2025-04-28)

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

code-white.com https://code-white.com/blog/2015-05-cve-2015-2079-rce-usermin/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Usermin Usermin

Classification

Weakness

CWE-96 Improper Neutralization of Directives in Statically Saved Code
CWE-94 Improper Control of Generation of Code

References

code-white.com /blog/2015-05-cve-2015-2079-rce-usermin/
exploit
code-white.com /public-vulnerability-list/
third-party-advisory

Sources

CVE List CVE-2015-2079
NVD CVE-2015-2079

Fencer Intel 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.

Summary