Back
CVE-2010-3035
Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote…
High7.5Known exploitedEPSS 5.7%
- Published
- Updated
- Reserved
- Assigned by
- cisco
Description
Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service (peering reset) via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, aka Bug ID CSCti62211.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability.
- Added
- 25 Mar 2022
- Fix due (US federal)
- 15 Apr 2022
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.7% · top 7.0% of all CVEs (4 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- n/a
- CWE-noinfo Not enough information
Affected products
n/a
- affected n/a
References (8)
- ciscoiosxr-bgp-packet-dos(61443) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 1024371 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20100827 Cisco IOS XR Software Border Gateway Protocol Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- [nanog] 20100827 Did your BGP crash today? (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 41190 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2010-2227 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 67696 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3035 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2010-3035)Record last updated .