CVE-2026-35535: siemens sinec_os Privilege Dropping / Lowering Errors
CVSS: 7.8v3.1HighModified
AliasesMGASA-2026-0211SUSE-SU-2026:1308-1SUSE-SU-2026:1309-1SUSE-SU-2026:1359-1SUSE-SU-2026:21252-1SUSE-SU-2026:21273-1RHSA-2026:10758RHSA-2026:11521RHSA-2026:12310RHSA-2026:13731RHSA-2026:13888RHSA-2026:13889RHSA-2026:13891RHSA-2026:13892RHSA-2026:13895RHSA-2026:13896RHSA-2026:14228RHSA-2026:14437RHSA-2026:19067RHSA-2026:19220UBUNTU-CVE-2026-35535DEBIAN-CVE-2026-35535CGA-5vxm-5qvq-3q6qCGA-wwmq-j233-4qmhopenSUSE-SU-2026:10510-1openSUSE-SU-2026:20604-1
Published 03-04-2026Last modified 01-09-2026
Vulnerability summary
CVE-2026-35535 is a high (CVSS 7.8) Privilege Dropping / Lowering Errors vulnerability in siemens sinec_os. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.17%
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 1 · Related 1Timeline
- 03-04-2026PublishedVulnerability first disclosed.
- 01-09-2026Last modifiedVulnerability information updated.
Description
In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
CVSS metrics
7 scores · 7 sources · 1 versionHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources7 sources · 7.4–7.8
- CVE.orgCNA7.4HighCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · Red hatEcosystem advisory · calculated7.4HighCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated7.4HighCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · ChainguardEcosystem advisory · calculated7.4HighCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
0.00 pp
From 0.17% on 18-09-2026
18-09-202618-10-2026
EPSS score0.17%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-271Privilege Dropping / Lowering ErrorsThe product does not drop privileges before passing control of a resource to an actor that does not have those privileges.
- CWE-272Least Privilege ViolationThe elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed.
Affected systems
Suse16 products
- sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 1.9.9-150400.4.42.1
- sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 1.9.9-150400.4.42.1
- sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 1.9.12p1-150500.7.16.1
- sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS< 1.9.12p1-150500.7.16.1
- sudo&distro=SUSE Linux Enterprise Micro 5.3< 1.9.9-150400.4.42.1
Redhat6 products
- sudo< 0:1.9.15-10.p5.el10_1 | < 0:1.9.5p2-1.el8_10.5 | < 0:1.9.5p2-15.el9_7 | < 0:1.9.5p2-7.el9_0.6 | < 0:1.9.15-8.p5.el10_0.3 | < 0:1.9.5p2-10.el9_6.3 | < 0:1.9.5p2-9.el9_2.4 | < 0:1.9.5p2-1.el8_8.3 | < 0:1.8.23-10.el7_9.5 | < 0:1.8.6p3-29.el6_10.8 | < 0:1.9.5p2-1.el8_6.3 | < 0:1.9.5p2-10.el9_4.3 | < 0:1.9.17-4.p2.el10_2 | < 0:1.9.17p2-3.el9_8
- sudo-debuginfo< 0:1.9.15-10.p5.el10_1 | < 0:1.9.5p2-1.el8_10.5 | < 0:1.9.5p2-15.el9_7 | < 0:1.9.5p2-7.el9_0.6 | < 0:1.9.15-8.p5.el10_0.3 | < 0:1.9.5p2-10.el9_6.3 | < 0:1.9.5p2-9.el9_2.4 | < 0:1.9.5p2-1.el8_8.3 | < 0:1.8.23-10.el7_9.5 | < 0:1.8.6p3-29.el6_10.8 | < 0:1.9.5p2-1.el8_6.3 | < 0:1.9.5p2-10.el9_4.3 | < 0:1.9.17-4.p2.el10_2 | < 0:1.9.17p2-3.el9_8
- sudo-debugsource< 0:1.9.15-10.p5.el10_1 | < 0:1.9.5p2-1.el8_10.5 | < 0:1.9.5p2-15.el9_7 | < 0:1.9.5p2-7.el9_0.6 | < 0:1.9.15-8.p5.el10_0.3 | < 0:1.9.5p2-10.el9_6.3 | < 0:1.9.5p2-9.el9_2.4 | < 0:1.9.5p2-1.el8_8.3 | < 0:1.9.5p2-1.el8_6.3 | < 0:1.9.5p2-10.el9_4.3 | < 0:1.9.17-4.p2.el10_2 | < 0:1.9.17p2-3.el9_8
- sudo-devel< 0:1.8.23-10.el7_9.5 | < 0:1.8.6p3-29.el6_10.8
- sudo-python-plugin< 0:1.9.15-10.p5.el10_1 | < 0:1.9.5p2-15.el9_7 | < 0:1.9.5p2-7.el9_0.6 | < 0:1.9.15-8.p5.el10_0.3 | < 0:1.9.5p2-10.el9_6.3 | < 0:1.9.5p2-9.el9_2.4 | < 0:1.9.5p2-10.el9_4.3 | < 0:1.9.17-4.p2.el10_2 | < 0:1.9.17p2-3.el9_8
Opensuse2 products
- sudo&distro=openSUSE Leap 16.0< 1.9.17p1-160000.3.1
- sudo&distro=openSUSE Tumbleweed< 1.9.17p2-2.1
Chainguard1 product
- sudo< 1.9.17_p2-r10
Debian1 product
- sudo< 1.9.13p3-1+deb12u4 | < 1.9.16p2-3+deb13u2 | < 1.9.17p2-5
Mageia1 product
- sudo< 1.9.15p5-1.2.mga9
Siemens1 product
- sinec_os< 4.0
Sudo_project1 product
- sudo< 3e474c2f201484be83d994ae10a4e20e8c81bb69 | < 1.9.17 | 1.9.17 | 1.9.17:p1 | 1.9.17:p2
Ubuntu1 product
- sudo< 1.9.9-1ubuntu2.6 | < 1.9.15p5-3ubuntu5.24.04.2 | < 1.9.17p2-1ubuntu1.1
Wolfi1 product
- sudo< 1.9.17_p2-r10
10 vendors · 31 products