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TI-2025-41850 Aliases CVE-2025-68274GHSA-c623-f998-8hhv

SIPGO library has response DoS vulnerability via nil pointer dereference

Priority HIGH 77CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.

Summary

SIPGO is a library for writing SIP services in the GO language. Starting in version 0.3.0 and prior to version 1.0.0-alpha-1, a nil pointer dereference vulnerability is in the SIPGO library's `NewResponseFromRequest` function that affects all normal SIP operations. The vulnerability allows remote attackers to crash any SIP application by sending a single malformed SIP request without a To header. The vulnerability occurs when SIP message parsing succeeds for a request missing the To header, but the response creation code assumes the To header exists without proper nil checks. This affects routine operations like call setup, authentication, and message handling - not just error cases. This vulnerability affects all SIP applications using the sipgo library, not just specific configurations or edge cases, as long as they make use of the `NewResponseFromRequest` function. Version 1.0.0-alpha-1 contains a patch for the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00547 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed sipgo (emiago): v1.0.0-alpha-1github.com/emiago/sipgo (Go): 1.0.0-alpha-1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
emiagosipgov0.3.0 to before v1.0.0-alpha-1v1.0.0-alpha-1Patch availableCNA
—github.com/emiago/sipgo (Go)0.3.0 to before 1.0.0-alpha-11.0.0-alpha-1Patch availableGHSA-c623-f998-8hhv
  • sipgo Vendoremiago Affected v0.3.0 to before v1.0.0-alpha-1 Fixed in v1.0.0-alpha-1 Patch available CNA
  • github.com/emiago/sipgo (Go) Vendor— Affected 0.3.0 to before 1.0.0-alpha-1 Fixed in 1.0.0-alpha-1 Patch available GHSA-c623-f998-8hhv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:emiago:sipgo:*:*:*:*:*:go:*:*0.30.0 to before 1.0.0Vulnerableemiago
  • cpe:2.3:a:emiago:sipgo:*:*:*:*:*:go:*:* Versions 0.30.0 to before 1.0.0 Vulnerable ·emiago

Remediation

  • Fix · CNA sipgo (emiago) Fixed in v1.0.0-alpha-1
  • Fix · GHSA-c623-f998-8hhv github.com/emiago/sipgo (Go) Fixed in 1.0.0-alpha-1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-68274
  2. 2026-10-03 Alias added: GHSA-c623-f998-8hhv

References

Exploit 1

Patch 1

Advisory 1

Other 1

Sources

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