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CVE-2017-7853

24
FAUCET Score

CVE-2017-7853 describes a heap buffer overflow vulnerability in GNU oSIP versions 4.1.0 and 5.0.0, specifically within the msg_osip_body_parse() function. This flaw can be triggered by a specially crafted SIP message, leading to a remote Denial of Service (DoS) condition. The vulnerability carries a CVSSv3 score of 7.5 (HIGH), indicating it can be exploited remotely with low attack complexity and no user interaction, resulting in a complete loss of availability. Currently, 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
5.0.0CPE matchmatch criteria
cpe:2.3:a:gnu:osip:5.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0246 is in the 69th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

savannah.gnu.org / support/index.php
Issue TrackingPatchVendor Advisory
debian.org / security/2017/dsa-3879
securityfocus.com / bid/97644
Third Party AdvisoryVDB Entry