CVE-2021-42870
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
- Record
CVE-2021-42870- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
- Record
CVE-2021-42870- Updated
- 2026-11-02
EUVDEUVD-2021-29825 No score
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
- Record
EUVD-2021-29825- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qpw6-gmmf-vxhp
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
- Record
GHSA-qpw6-gmmf-vxhp- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
ACCEL-PPP 1.12.0 has an out-of-bounds read in post_msg when processing a call_clear_request.
- Record
CVE-2021-42870- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42870 is a high vulnerability (CVSS 7.5) in Accel-ppp, published May 16, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. No source names a fixed version.