Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2007-4553

25
FAUCET Score

CVE-2007-4553 describes a denial-of-service vulnerability in the Thomson ST 2030 SIP phone running software version 1.52.1. Remote attackers can exploit this by sending a malformed INVITE message, specifically one with a '/' instead of a space in the Via header's SIP version field, causing the device to hang. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, leading to partial availability impact. While not listed on the KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1CPE matchmatch criteria
cpe:2.3:h:thomson:st_2030_sip_phone:1:1.52.1_firmware:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.21%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-4319 · Aug 27, 2007
This CVE's current EPSS score of 0.0821 is in the 93rd percentile among its peer group of 23,690 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

lists.grok.org.uk / pipermail/full-disclosure/2007-August/065433.html
secunia.com / advisories/26587
securityreason.com / securityalert/3075
exchange.xforce.ibmcloud.com / vulnerabilities/36217
securityfocus.com / bid/25446
securitytracker.com / id
vupen.com / english/advisories/2007/2988