CVE-2013-1143
CVE-2013-1143 is a high-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.1)
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Cisco Ios
- Published:
- Last modified:
Description
The RSVP protocol implementation in Cisco IOS 12.2 and 15.0 through 15.2 and IOS XE 3.1.xS through 3.4.xS before 3.4.5S and 3.5.xS through 3.7.xS before 3.7.2S, when MPLS-TE is enabled, allows remote attackers to cause a denial of service (incorrect memory access and device reload) via a traffic engineering PATH message in an RSVP packet, aka Bug ID CSCtg39957.
Frequently asked questions
- What is CVE-2013-1143?
- The RSVP protocol implementation in Cisco IOS 12.2 and 15.0 through 15.2 and IOS XE 3.1.xS through 3.4.xS before 3.4.5S and 3.5.xS through 3.7.xS before 3.7.2S, when MPLS-TE is enabled, allows remote attackers to cause a denial of service (incorrect memory access and device reload) via a traffic engineering PATH message in an RSVP packet, aka Bug ID CSCtg39957.
- How severe is CVE-2013-1143?
- CVE-2013-1143 has a CVSS 2.0 base score of 7.1, rated high severity.
- Is CVE-2013-1143 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2013-1143?
- CVE-2013-1143 primarily affects Cisco Ios. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2013-1143?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2013-1143 published?
- CVE-2013-1143 was published on 2013-03-28 and last updated on 2026-06-16.
References
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130327-rsvp
- http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1143
Affected products (25)
- cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:15.0\(1\)se:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios:15.3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.1.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.1.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.1.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.1.3s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.1.4s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.2.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.2.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.2.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.3.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.3.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.3.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.3.3s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.4.3s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.5.0s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.5.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:3.5.2s:*:*:*:*:*:*:*
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