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CVE-2025-15529

28
FAUCET Score

CVE-2025-15529 is a denial-of-service vulnerability affecting Open5GS versions up to 2.7.6, specifically within the sgwc_s5c_handle_create_session_response function in src/sgwc/s5c-handler.c. This flaw carries a high CVSS score of 7.5, indicating it can be exploited remotely without authentication or user interaction, leading to a complete loss of availability for affected systems. While not currently on the CISA KEV catalog, public exploit code exists, and the vulnerability has garnered significant community discussion, suggesting a heightened risk of exploitation. A patch (b19cf6a2dbf5d30811be4488bf059c865bd7d1d2) is available to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.6CPE matchmatch criteria
cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 25th percentile among its peer group of 51,553 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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / open5gs/open5gs
github.com / open5gs/open5gs/commit/b19cf6a2dbf5d30811be4488bf059c865bd7d1d2
Patch
github.com / open5gs/open5gs/issues/4226
ExploitIssue TrackingVendor Advisory
github.com / open5gs/open5gs/issues/4226
ExploitIssue TrackingVendor Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com