CVE-2026-1522

MEDIUM EPSS 46.7%
Published Jan 28, 20265mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 4.0
Medium
Find Similar
Published Jan 28, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

A weakness has been identified in Open5GS up to 2.7.6. This vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.

CVSS Details

Base Score
5.5
Exploitability
—
Impact
—
Vector string
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
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
46.7% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-404

Affected Products 1

VendorProductVersionRange
open5gsopen5gs* ≤2.7.6

References 8

  • github.com https://github.com/open5gs/open5gs/
  • github.com https://github.com/open5gs/open5gs/commit/b19cf6a
    Patch
  • github.com https://github.com/open5gs/open5gs/issues/4266
    ExploitIssue TrackingPatchVendor Advisory
  • github.com https://github.com/open5gs/open5gs/issues/4266#event-21968568116
    ExploitIssue TrackingPatch
  • github.com https://github.com/open5gs/open5gs/issues/4266#issue-3794991595
    ExploitIssue TrackingPatchVendor Advisory
  • vuldb.com https://vuldb.com/?ctiid.343193
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.343193
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.738371
    ExploitThird Party AdvisoryVDB Entry

Remediation

  • github.com https://github.com/open5gs/open5gs/commit/b19cf6a
    Patch
  • github.com https://github.com/open5gs/open5gs/issues/4266
    ExploitIssue TrackingPatchVendor Advisory
  • github.com https://github.com/open5gs/open5gs/issues/4266#event-21968568116
    ExploitIssue TrackingPatch
  • github.com https://github.com/open5gs/open5gs/issues/4266#issue-3794991595
    ExploitIssue TrackingPatchVendor Advisory