Back
CVE-2020-1712A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while…
- 7.8HighCVSS base score
- 0.46%Exploitation in 30 daysEPSS · top 60% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.46% · top 60% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
References
References8
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.openwall.com/lists/oss-security/2020/02/05/1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20220630 [SECURITY] [DLA 3063-1] systemd security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-12567 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-1712)Record last updated .