CVE-2013-4602

A Denial of Service (infinite loop) vulnerability exists in Avira AntiVir Engine before 8.2.12.58 via an unspecified function in the PDF Scanner Engine.

Published: 2020-02-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4602 is rated Moderate Risk (43.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.42%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4602

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-15 0.26% 0.42% +0.17%
2 2025-03-30 0.18% 0.26% +0.08%
3 2025-03-29 — 0.18% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4602

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
7.1 2.0 HIGH
AV:N/AC:M/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 6.9 [email protected]

Weakness enumeration for CVE-2013-4602

Affected software / configurations for CVE-2013-4602

Vendor Product Version Raw CPE
avira antivir_mailgate < 8.2.12.58 cpe:2.3:a:avira:antivir_mailgate:*:*:*:*:*:*:*:*
avira antivir_mailgate_suite < 8.2.12.58 cpe:2.3:a:avira:antivir_mailgate_suite:*:*:*:*:*:*:*:*
avira antivir_personal < 8.2.12.58 cpe:2.3:a:avira:antivir_personal:*:*:*:*:*:*:*:*
avira antivir_sharepoint < 8.2.12.58 cpe:2.3:a:avira:antivir_sharepoint:*:*:*:*:*:*:*:*
avira antivir_webgate < 8.2.12.58 cpe:2.3:a:avira:antivir_webgate:*:*:*:*:*:*:*:*
avira antivir_webgate_suite < 8.2.12.58 cpe:2.3:a:avira:antivir_webgate_suite:*:*:*:*:*:*:*:*
avira antivirus_server < 8.2.12.58 cpe:2.3:a:avira:antivirus_server:*:*:*:*:*:*:*:*
avira exchange_security < 8.2.12.58 cpe:2.3:a:avira:exchange_security:*:*:*:*:*:*:*:*
avira professional_security < 8.2.12.58 cpe:2.3:a:avira:professional_security:*:*:*:*:*:*:*:*
avira savapi < 8.2.12.58 cpe:2.3:a:avira:savapi:*:*:*:*:*:*:*:*

References for CVE-2013-4602

URL Tags
http://www.securityfocus.com/bid/60552 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1028666 Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/85099 Third Party Advisory VDB Entry
https://packetstormsecurity.com/files/122024/Avira-AntiVir-Engine-Denial-Of-Service-Filter-Evasion.html Third Party Advisory VDB Entry
https://vuldb.com/?id.9151 Permissions Required Third Party Advisory
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