CVE-2010-3126 — Untrusted search path vulnerability in avast! Free Antivirus version 5.0.594 and earlier allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse mfc90loc.dll that is located in the same folder as an avast license (.avastlic) file

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HIGH

Untrusted search path vulnerability in avast! Free Antivirus version 5.0.594 and earlier allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse mfc90loc.dll that is located in the same folder as an avast license (.avastlic) file

Published Aug 26, 2010

9.3

HIGH

CVSS 2.0

EPSS 7.83%

Description

Untrusted search path vulnerability in avast! Free Antivirus version 5.0.594 and earlier allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse mfc90loc.dll that is located in the same folder as an avast license (.avastlic) file.

Affected products

Remediation

No remediation recorded yet.

Metrics

7.83% 0.07826

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.07826

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (12 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	7.83% (0.07826)	94.50th	v5 (v2026.06.15)
Jun 15, 2026	7.98% (0.07976)	93.99th	v5 (v2026.06.15)
May 5, 2025	1.70% (0.01696)	81.23th	v4 (v2025.03.14)
Mar 17, 2025	5.14% (0.05136)	89.12th	v4 (v2025.03.14)
Dec 12, 2024	1.11% (0.01114)	85.19th	v3 (v2023.03.01)
Jan 22, 2024	1.11% (0.01114)	82.97th	v3 (v2023.03.01)
Jul 25, 2023	1.09% (0.01087)	82.40th	v3 (v2023.03.01)
Jun 5, 2023	1.12% (0.01117)	82.50th	v3 (v2023.03.01)
Mar 7, 2023	1.22% (0.01216)	83.13th	v3 (v2023.03.01)
Mar 6, 2023	7.44% (0.07437)	92.66th	v2 (v2022.01.01)
Apr 1, 2022	7.44% (0.07437)	91.94th	v2 (v2022.01.01)
Feb 4, 2022	7.44% (0.07437)	80.87th	v2 (v2022.01.01)

Weaknesses (0)

No CWE recorded.

References (4)

http://secunia.com/advisories/41109
third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.exploit-db.com/exploits/14743
exploitx_refsource_EXPLOIT-DB
http://www.vupen.com/english/advisories/2010/2175
vdb-entryx_refsource_VUPENVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7193
vdb-entrysignaturex_refsource_OVAL

Link	Providers	Tags
http://secunia.com/advisories/41109		third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.exploit-db.com/exploits/14743		exploitx_refsource_EXPLOIT-DB
http://www.vupen.com/english/advisories/2010/2175		vdb-entryx_refsource_VUPENVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7193		vdb-entrysignaturex_refsource_OVAL

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Aug 26, 2010

Updated Aug 7, 2024

Reserved Aug 26, 2010

Link CVE-2010-3126

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2010-3126

Red Hat

Severity n/a

Public date n/a

Links CVE-2010-3126