CVE-2020-12693

Slurm 19.05.x before 19.05.7 and 20.02.x before 20.02.3, in the rare case where Message Aggregation is enabled, allows Authentication Bypass via an Alternate Path or Channel. A race condition allows a user to launch a process as an arbitrary user.

Published: 2020-05-21 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12693 is rated Moderate Risk (62.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.26%). EPSS rose +1.62% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-12693

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.63% 2.26% +1.62%
2 2026-02-03 0.25% 0.63% +0.38%
3 2026-02-02 — 0.25% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12693

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2020-12693

OS Trackers for CVE-2020-12693

vendor priority summary link
debian unimportant CVE-2020-12693 unimportant priority: Debian including 1 source packages (slurm-wlm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-12693
suse medium CVE-2020-12693 severity moderate: SUSE including 355 source package names (libnss_slurm2, libnss_slurm2-20.02.3-3.8.1, …), 707 product×package rows across 19 product lines (SUSE Linux Enterprise High Performance Computing 15 SP2, SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS, … (19 product lines)): Fixed 575, Known Not Affected 132. https://www.suse.com/security/cve/CVE-2020-12693/
ubuntu medium CVE-2020-12693 medium priority: Ubuntu including 1 source packages (slurm-llnl), 16 status rows across 16 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): DNE 10, released 3, ignored 1, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2020-12693

Affected software / configurations for CVE-2020-12693

Vendor Product Version Raw CPE
schedmd slurm >= 19.05.0, < 19.05.7 cpe:2.3:a:schedmd:slurm:*:*:*:*:*:*:*:*
schedmd slurm >= 20.02.0, < 20.02.3 cpe:2.3:a:schedmd:slurm:*:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
fedoraproject fedora 32 cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
opensuse leap 15.2 cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2020-12693

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00035.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00063.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/01/msg00011.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KNL5E5SK4WP6M3DKU4IKW2NPQD2XTZ4Y/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3RGQB3EWDLOLTSPAJPPWZEPQK3O3AUH/
https://lists.schedmd.com/pipermail/slurm-announce/2020/000036.html Mailing List Release Notes Vendor Advisory
https://www.debian.org/security/2021/dsa-4841 Third Party Advisory
https://www.schedmd.com/news.php?id=236 Vendor Advisory
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