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CVE-2013-5481

23
FAUCET Score

CVE-2013-5481 describes a denial-of-service vulnerability in the PPTP implementation of Cisco IOS versions 12.2 and 15.0 through 15.3 when NAT is enabled. Remote attackers can trigger a device reload by sending crafted TCP port-1723 packets. This vulnerability has a CVSS score of 7.1, indicating high severity due to its potential for a complete denial of service (availability impact) with medium attack complexity and no authentication required. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*
15.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*
15.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.95%
Probability of exploitation in next 30 days
EPSS Percentile
78.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0195 is in the 36th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-nat
Vendor Advisory