How severe is CVE-2010-3035?

CVE-2010-3035 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2010-3035 being actively exploited?

Yes. CVE-2010-3035 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2010-3035?

CVE-2010-3035 affects Cisco Ios Xr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-3035?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2010-3035 have an EU (EUVD) identifier?

Yes. CVE-2010-3035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2010-3037. It is also flagged as exploited in the EUVD (since 2022-03-25).

When was CVE-2010-3035 published?

CVE-2010-3035 was published on 2010-08-30 and last updated on 2026-06-16.

CVE-2010-3035

CVE-2010-3035 is a high-severity vulnerability in Cisco Ios Xr with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-25).

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-03-25)
EU (EUVD) id: EUVD-2010-3037
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-03-25)
Affected product: Cisco Ios Xr
Published: 2010-08-30
Last modified: 2026-06-16

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2010-3035?: CVE-2010-3035 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2010-3035 being actively exploited?: Yes. CVE-2010-3035 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2010-3035?: CVE-2010-3035 affects Cisco Ios Xr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-3035?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2010-3035 have an EU (EUVD) identifier?: Yes. CVE-2010-3035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2010-3037. It is also flagged as exploited in the EUVD (since 2022-03-25).
When was CVE-2010-3035 published?: CVE-2010-3035 was published on 2010-08-30 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

More vulnerabilities in Cisco Ios Xr

CVE-2020-3284 — Critical (CVSS 9.8): A vulnerability in the enhanced Preboot eXecution Environment (PXE) boot loader for Cisco IOS XR 64-bit Software could…
CVE-2019-1710 — Critical (CVSS 9.8): A vulnerability in the sysadmin virtual machine (VM) on Cisco ASR 9000 Series Aggregation Services Routers running…
CVE-2025-20363 — Critical (CVSS 9.0): A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure…
CVE-2026-20046 — High (CVSS 8.8): A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an…
CVE-2026-20040 — High (CVSS 8.8): A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary…
CVE-2025-20138 — High (CVSS 8.8): A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary…

All CVEs affecting Cisco Ios Xr →