CVE-2026-82474: sudo-project sudo Protection Mechanism Failure
CVSS: 8.5v4.0HighAwaiting analysis
AliasesRHSA-2026:68692RHSA-2026:69123RHSA-2026:71354UBUNTU-CVE-2026-82474USN-8803-1DEBIAN-CVE-2026-82474
Published 29-08-2026Last modified 02-09-2026
Vulnerability summary
CVE-2026-82474 is a high (CVSS 8.5) Protection Mechanism Failure vulnerability in sudo-project sudo. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.4% of scored vulnerabilities.
CVSS score
8.5/10
010
High · v4.0 (CVE.org)EPSS score
0.13%
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 1Timeline
- 29-08-2026PublishedVulnerability first disclosed.
- 02-09-2026Last modifiedVulnerability information updated.
Description
Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.
CVSS metrics
8 scores · 5 sources · 2 versionsHigh 8.5Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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
- NVDNIST8.5HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · Red hatEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 19-09-2026
19-09-202619-10-2026
EPSS score0.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat5 products
- sudo< 0:1.9.15-8.p5.el10_0.4 | < 0:1.9.17-10.p2.el10_2.6 | < 0:1.9.17p2-3.el9_8.1
- sudo-debuginfo< 0:1.9.15-8.p5.el10_0.4 | < 0:1.9.17-10.p2.el10_2.6 | < 0:1.9.17p2-3.el9_8.1
- sudo-debugsource< 0:1.9.15-8.p5.el10_0.4 | < 0:1.9.17-10.p2.el10_2.6 | < 0:1.9.17p2-3.el9_8.1
- sudo-python-plugin< 0:1.9.15-8.p5.el10_0.4 | < 0:1.9.17-10.p2.el10_2.6 | < 0:1.9.17p2-3.el9_8.1
- sudo-python-plugin-debuginfo< 0:1.9.15-8.p5.el10_0.4 | < 0:1.9.17-10.p2.el10_2.6 | < 0:1.9.17p2-3.el9_8.1
Debian1 product
- sudoAll versions (No fix recorded)
Sudo-project1 product
- sudo≤ 1.9.17p2
Ubuntu1 product
- sudo< 1.9.15p5-3ubuntu5.24.04.3 | < 1.9.17p2-1ubuntu3.1
4 vendors · 8 products
References
19 links- www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveatThird Party AdvisoryARTICLEREPORT
