CVE-2022-29901Arbitrary Memory Disclosure through CPU Side-Channel Attacks (Retbleed)
- 5.6MediumCVSS base score
- 5.0%Exploitation in 30 daysEPSS · top 7.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.
Timeline
ID reserved
By intel
- 3 months later
· 3 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| intelCNA (assigner) | 3.1 | Medium5.6 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 5.0% · top 7.6% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.6.
Affected products
- affected generations 6 to 8
References
References14
- https://comsec.ethz.ch/retbleed (opens in a new tab)x_transferred
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00702.html (opens in a new tab)x_transferred
- [oss-security] 20220712 Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed - arbitrary speculative code execution with return instructions (opens in a new tab)mailing-listx_transferred
- [oss-security] 20220712 Re: Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed - arbitrary speculative code execution with return instructions (opens in a new tab)mailing-listx_transferred
- [oss-security] 20220712 Re: Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed - arbitrary speculative code execution with return instructions (opens in a new tab)mailing-listx_transferred
- [oss-security] 20220713 Re: Xen Security Advisory 407 v1 (CVE-2022-23816,CVE-2022-23825,CVE-2022-29900) - Retbleed - arbitrary speculative code execution with return instructions (opens in a new tab)mailing-listx_transferred
- FEDORA-2022-c69ef9c1dd (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2022-8aab5b5cde (opens in a new tab)vendor-advisoryx_transferred
- DSA-5207 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20220911 [SECURITY] [DLA 3102-1] linux-5.10 new package (opens in a new tab)mailing-listx_transferred
- https://security.netapp.com/advisory/ntap-20221007-0007/ (opens in a new tab)x_transferred
- [debian-lts-announce] 20221223 [SECURITY] [DLA 3245-1] linux security update (opens in a new tab)mailing-listx_transferred
- https://www.secpod.com/blog/retbleed-intel-and-amd-processor-information-disclosure-vulnerability/ (opens in a new tab)x_transferred
- GLSA-202402-07 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-34211 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-29901)Record last updated .