CVE-2013-6449

mediumpriority · track · 24EPSS 0.212 · 98 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

21.2% (98th) EPSS

CVSS 4.3 · medium

Is it mine?

41 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

The ssl_get_algorithm2 function in ssl/s3_lib.c in OpenSSL before 1.0.2 obtains a certain version number from an incorrect data structure, which allows remote attackers to cause a denial of service (daemon crash) via crafted traffic from a TLS 1.2 client.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.7–7.5

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.03.7lowAV:N/AC:M/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-310USprimaryCWE-310US

affected products (41)

Products and version ranges known to be affected.

F5 ARX 6.0.0 - 6.4.0all versionscert_bundDEcpe:/a:f5:arx:6.4.0
F5 BIG-IP Access Policy Manager 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_access_policy_manager:11.5.1
F5 BIG-IP Analytics 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_analytics:11.5.1
F5 BIG-IP Application Security Manager 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_application_security_manager:11.5.1
F5 BIG-IP Global Traffic Manager 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_global_traffic_manager:11.5.1
F5 BIG-IP Link Controller 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_link_controller:11.5.1
F5 BIG-IP Local Traffic Manager 11.5.0 - 11.5.1all versionscert_bundDEcpe:/a:f5:big-ip_local_traffic_manager:11.5.1
FreeBSD Project FreeBSD OSall versionscert_bundDEcpe:/o:freebsd:freebsd:-
HP System Management Homepageall versionscert_bundDEcpe:/a:hp:system_management_homepage:-
IBM AIX 5.3all versionscert_bundDEcpe:/o:ibm:aix:5.3
IBM AIX 6.1all versionscert_bundDEcpe:/o:ibm:aix:6.1
IBM AIX 7.1all versionscert_bundDEcpe:/o:ibm:aix:7.1
IBM FlashSystem 710all versionscert_bundDEcpe:/a:ibm:flashsystem:710
IBM FlashSystem 720all versionscert_bundDEcpe:/a:ibm:flashsystem:720
IBM FlashSystem 810all versionscert_bundDEcpe:/a:ibm:flashsystem:810
IBM FlashSystem 820all versionscert_bundDEcpe:/a:ibm:flashsystem:820
Open Source OpenSSL 1.0.1 <= 1.0.1eall versionscert_bundDEcpe:/a:openssl:openssl:1.0.1e
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Oracle Solaris 11.1all versionscert_bundDEcpe:/a:oracle:solaris:11.1
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-

showing 20 of 41

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0505OpenSSL: Schwachstelle ermöglicht Denial of ServiceDeutsch2013-12-26csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OpenSSL ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (8)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2013-12-23modified 2026-06-17

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+2915 more

references (56)

External citations — patches, advisories, analysis.

scry

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