CVE-2025-35979: intel-microcode
Vulnerability summary
CVE-2025-35979 is a medium (CVSS 6.8) vulnerability in intel-microcode. EPSS estimates a 0.10% chance of exploitation in the next 30 days, higher than 0.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 12-05-2026PublishedVulnerability first disclosed.
- 12-05-2026Last modifiedVulnerability information updated.
Description
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Processors within VMX non-root (guest) operation may allow an information disclosure. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · AlpineEcosystem advisory · calculated6.8MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST6.8MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.10%
Chance of exploitation in the next 30 days
Percentile
1%
Versus all other CVEs
30-day change
0.00 pp
From 0.10% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse17 products
- microcode_ctl&distro=SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE< 1.17-102.83.95.1
- ucode-intel&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 20260512-150200.65.1
- ucode-intel&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 20260512-150200.65.1
- ucode-intel&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 20260512-150200.65.1
- ucode-intel&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 20260512-150200.65.1
Alpine1 product
- intel-ucode< 20260512-r0
Debian1 product
- intel-microcodeAll versions (No fix recorded)
Mageia1 product
- microcode< 0.20260512-1.mga9.nonfree
Opensuse1 product
- ucode-intel&distro=openSUSE Tumbleweed< 20260512-1.1
Ubuntu1 product
- intel-microcodeAll versions (No fix recorded)
6 vendors · 22 products