Cyber Resilience

CVE-2022-40982

MediumPublic PoC

Published: 11 August 2023

Published
11 August 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS Score 0.0078 74.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-40982 is a medium-severity Information Exposure through Microarchitectural State after Transient Execution (CWE-1342) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 25.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

redhat
enterprise linux
6.0, 7.0, 8.0, 9.0
xen
xen
all versions
intel
microcode
≤ 20230808
intel
xeon e-2314 firmware
all versions
intel
xeon e-2324g firmware
all versions
intel
xeon e-2334 firmware
all versions
intel
xeon e-2374g firmware
all versions
intel
xeon e-2336 firmware
all versions
intel
xeon e-2356g firmware
all versions
intel
xeon e-2386g firmware
all versions
+524 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-203

Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.

addresses: CWE-203

Observable discrepancies in system behavior can be modulated to create covert storage or timing channels; the required analysis detects and constrains such avenues.

addresses: CWE-203

Prevents attackers from using observable differences in error responses to infer internal system details or state.

References