How severe is CVE-2009-2862?

CVE-2009-2862 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-2862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2862?

CVE-2009-2862 primarily affects Cisco Ios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2862?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-2862 published?

CVE-2009-2862 was published on 2009-09-28 and last updated on 2026-06-16.

CVE-2009-2862

CVE-2009-2862 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cisco Ios
Published: 2009-09-28
Last modified: 2026-06-16

Description

The Object Groups for Access Control Lists (ACLs) feature in Cisco IOS 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to bypass intended access restrictions via crafted requests, aka Bug IDs CSCsx07114, CSCsu70214, CSCsw47076, CSCsv48603, CSCsy54122, and CSCsu50252.

Frequently asked questions

What is CVE-2009-2862?: The Object Groups for Access Control Lists (ACLs) feature in Cisco IOS 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to bypass intended access restrictions via crafted requests, aka Bug IDs CSCsx07114, CSCsu70214, CSCsw47076, CSCsv48603, CSCsy54122, and CSCsu50252.
How severe is CVE-2009-2862?: CVE-2009-2862 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-2862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2862?: CVE-2009-2862 primarily affects Cisco Ios. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2862 published?: CVE-2009-2862 was published on 2009-09-28 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:o:cisco:ios:12.2xnb:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2xnc:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2xnd:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4md:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4t:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4xz:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4ya:*:*:*:*:*:*:*

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