How severe is CVE-2012-5032?

CVE-2012-5032 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2012-5032 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5032?

CVE-2012-5032 primarily affects Cisco Ios. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-5032?

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

When was CVE-2012-5032 published?

CVE-2012-5032 was published on 2014-04-23 and last updated on 2026-06-16.

CVE-2012-5032

CVE-2012-5032 is a medium-severity vulnerability in Cisco Ios with a CVSS 2.0 base score of 6.4. 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-287.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Ios
Published: 2014-04-23
Last modified: 2026-06-16

Description

The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1)SY3 does not require authentication, which allows remote attackers to trigger the forwarding of VPN traffic to an attacker-controlled destination, or the discarding of this traffic, by arranging for an arbitrary device to become a cluster member, aka Bug ID CSCub93641.

Frequently asked questions

What is CVE-2012-5032?: The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1)SY3 does not require authentication, which allows remote attackers to trigger the forwarding of VPN traffic to an attacker-controlled destination, or the discarding of this traffic, by arranging for an arbitrary device to become a cluster member, aka Bug ID CSCub93641.
How severe is CVE-2012-5032?: CVE-2012-5032 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2012-5032 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5032?: CVE-2012-5032 primarily affects Cisco Ios. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-5032?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5032 published?: CVE-2012-5032 was published on 2014-04-23 and last updated on 2026-06-16.

References

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/release_notes.pdf

Affected products (4)

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(1\)sy:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(1\)sy1:*:*:*:*:*:*:*

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