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CVE-2007-0648

21
FAUCET Score

CVE-2007-0648 describes a denial-of-service vulnerability affecting Cisco IOS versions after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, specifically when voice support is enabled and SIP is not configured. An unauthenticated remote attacker can trigger a device crash by sending a specially crafted UDP packet to port 5060. This vulnerability has a high severity CVSS score of 7.8, indicating a critical impact on availability with low attack complexity and no authentication required. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.3\(14\)tCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(14\)t:*:*:*:*:*:*:*
12.3\(14\)t2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(14\)t2:*:*:*:*:*:*:*
12.3\(14\)t4CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(14\)t4:*:*:*:*:*:*:*
12.3\(14\)t5CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3\(14\)t5:*:*:*:*:*:*:*
12.3ygCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3yg:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.52%
Probability of exploitation in next 30 days
EPSS Percentile
88.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0352 is in the 79th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

secunia.com / advisories/23978
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/31990
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5138
cisco.com / warp/public/707/cisco-air-20070131-sip.shtml
Vendor Advisory
cisco.com / warp/public/707/cisco-sa-20070131-sip.shtml
PatchVendor Advisory
kb.cert.org / vuls/id/438176
PatchUS Government Resource
securityfocus.com / bid/22330
vupen.com / english/advisories/2007/0428