CVE-2025-22840: intel-microcode
CVSS: 7.4v3.1HighDeferred
AliasesALPINE-CVE-2025-22840UBUNTU-CVE-2025-22840DEBIAN-CVE-2025-22840
Published 12-08-2025Last modified 26-02-2026
Vulnerability summary
CVE-2025-22840 is a high (CVSS 7.4) vulnerability in intel-microcode. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.8% of scored vulnerabilities.
CVSS score
7.4/10
010
High · v3.1 (NVD)EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 10 · Related 7Timeline
- 12-08-2025PublishedVulnerability first disclosed.
- 26-02-2026Last modifiedVulnerability information updated.
Description
Sequence of processor instructions leads to unexpected behavior for some Intel(R) Xeon(R) 6 Scalable processors may allow an authenticated user to potentially enable escalation of privilege via local access
CVSS metrics
7 scores · 5 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:NSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/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 · calculated5.3MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/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
- NVDNIST5.3MediumCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:L/SC:N/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
High 7.4Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:LSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L
EPSS trend
Probability
0.14%
Chance of exploitation in the next 30 days
Percentile
3%
Versus all other CVEs
30-day change
0.00 pp
From 0.14% on 19-09-2026
19-09-202619-10-2026
EPSS score0.14%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- intel-ucode< 20250812-r0
Debian1 product
- intel-microcode< 3.20250812.1~deb12u1 | < 3.20250812.1~deb13u1 | < 3.20250812.1
Ubuntu1 product
- intel-microcodeAll versions (No fix recorded) | < 3.20250812.0ubuntu0.16.04.1+esm1 | < 3.20250812.0ubuntu0.18.04.1+esm1 | < 3.20250812.0ubuntu0.20.04.1+esm1 | < 3.20250812.0ubuntu0.22.04.1 | < 3.20250812.0ubuntu0.24.04.1 | < 3.20250812.0ubuntu0.25.10.1
3 vendors · 3 products
