CVE-2022-35414
CVE-2022-35414 is a high-severity vulnerability in Qemu with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-908.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.1
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-908
- Affected product: Qemu
- Published:
- Last modified:
Description
softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_readx or io_writex crash. NOTE: a third party states that the Non-virtualization Use Case in the qemu.org reference applies here, i.e., "Bugs affecting the non-virtualization use case are not considered security bugs at this time.
Frequently asked questions
- What is CVE-2022-35414?
- softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_readx or io_writex crash. NOTE: a third party states that the Non-virtualization Use Case in the qemu.org reference applies here, i.e., "Bugs affecting the non-virtualization use case are not considered security bugs at this time.
- How severe is CVE-2022-35414?
- CVE-2022-35414 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-35414 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-35414?
- CVE-2022-35414 primarily affects Qemu. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-35414?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-35414 published?
- CVE-2022-35414 was published on 2022-07-11 and last updated on 2026-06-17.
References
- https://github.com/qemu/qemu/blob/f200ff158d5abcb974a6b597a962b6b2fbea2b06/softmmu/physmem.c
- https://github.com/qemu/qemu/blob/v7.0.0/include/exec/cpu-all.h#L145-L148
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482
- https://github.com/qemu/qemu/commit/3517fb726741c109cae7995f9ea46f0cab6187d6#diff-83c563ed6330dc5d49876f1116e7518b5c16654bbc6e9b4ea8e28f5833d576fcR482.aa
- https://github.com/qemu/qemu/commit/418ade7849ce7641c0f7333718caf5091a02fd4c
- https://gitlab.com/qemu-project/qemu/-/issues/1065
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
- https://sick.codes/sick-2022-113
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg895266.html
- https://www.qemu.org/docs/master/system/security.html#non-virtualization-use-case
Affected products (2)
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
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