How severe is CVE-2013-5552?

CVE-2013-5552 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2013-5552 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5552?

CVE-2013-5552 primarily affects Cisco Ios. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5552?

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

When was CVE-2013-5552 published?

CVE-2013-5552 was published on 2013-11-13 and last updated on 2026-06-16.

CVE-2013-5552

CVE-2013-5552 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Ios
Published: 2013-11-13
Last modified: 2026-06-16

Description

Cisco IOS 12.4(24)MDB9 and earlier on Content Services Gateway (CSG) devices does not properly implement the "parse error drop" feature, which allows remote attackers to bypass intended access restrictions via a crafted series of packets, aka Bug ID CSCug90143.

Frequently asked questions

What is CVE-2013-5552?: Cisco IOS 12.4(24)MDB9 and earlier on Content Services Gateway (CSG) devices does not properly implement the "parse error drop" feature, which allows remote attackers to bypass intended access restrictions via a crafted series of packets, aka Bug ID CSCug90143.
How severe is CVE-2013-5552?: CVE-2013-5552 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2013-5552 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5552?: CVE-2013-5552 primarily affects Cisco Ios. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-5552?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-5552 published?: CVE-2013-5552 was published on 2013-11-13 and last updated on 2026-06-16.

References

Affected products (26)

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md5a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)md9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda12:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mda13:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mdb10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mdb11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mdb12:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(24\)mdb13:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4mda12:*:*:*:*:*:*:*
cpe:2.3:h:cisco:content_services_gateway:-:*:*:*:*:*:*:*

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