ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
Priority LOW 35CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
Why it matters now
EPSS 0.01049 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:accel-ppp:accel-ppp:1.12.0:*:*:*:*:*:*:* | 1.12.0 | Vulnerable | https://accel-ppp.org/ |
- cpe:2.3:a:accel-ppp:accel-ppp:1.12.0:*:*:*:*:*:*:* Versions 1.12.0 Vulnerable ·https://accel-ppp.org/
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-42870
- 2026-10-03 Alias added: GHSA-qpw6-gmmf-vxhp
References
More https://accel-ppp.org/ Accel-ppp vulnerabilities
- TI-2020-17131 Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS… CVSS 3.1CRITICAL 9.8
- TI-2022-00881 Buffer Overflow via crafted client request in Accel-PPP v1.12 CVSS 3.1CRITICAL 9.8
- TI-2022-08520 Buffer Overflow via Crafted Ipv6 Prefix Attribute Type Client Request in accel-ppp v1.12 CVSS 3.1CRITICAL 9.8
- TI-2022-08519 Buffer Overflow via Crafted IPv6 Addr Attribute Type Client Request in Accel-PPP v1.12 CVSS 3.1CRITICAL 9.8
- TI-2020-11945 Heap buffer overflow in ACCEL-PPP CVSS 3.1CRITICAL 9.8
- TI-2021-18565 ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication. CVSS 3.1HIGH 7.5
Sources
- CVE-2021-42870 · CVE Program
- CVE-2021-42870 · NVD
- FIRST EPSS
- GHSA-qpw6-gmmf-vxhp · GitHub Advisory Database · CC BY 4.0
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