CVE-2023-5870

MEDIUMNVD 4.44.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.4 under NVD CVSS v3. EPSS exploit probability: 2.6%, top 17% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
4.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 3%CVSS: 4.4Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

CVSS v3
4.4
EG Score
4.4(medium)
EG Risk
21(Track)
EG Risk 21/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity44% × 45%
Exploitation3% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
83.4%
KEV
Not listed

Published

December 10, 2023

Last Modified

June 17, 2026

References (52)

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupostgresql-server-dev-15 (15.5-0ubuntu0.23.10.1) @ mantic2026-05-24ubuntu
ubuntupostgresql-server-dev-10 (10.23-0ubuntu0.18.04.2+esm1) @ bionic2026-05-24ubuntu
ubuntupostgresql-server-dev-9.5 (9.5.25-0ubuntu0.16.04.1+esm6) @ xenial2026-05-24ubuntu
redhatadvanced-cluster-security/rhacs-scanner-db-slim-rhel8:4.2.4-72024-01-22redhat
redhatadvanced-cluster-security/rhacs-scanner-db-slim-rhel8:4.1.6-62024-01-22redhat
redhatadvanced-cluster-security/rhacs-scanner-db-slim-rhel8:3.74.8-92024-01-18redhat
redhatpostgresql:15-8080020231113134015.63b345852023-12-20redhat
redhatpostgresql:15-8090020231114113548.a75119d52023-12-20redhat
redhatpostgresql:15-9020020231115020618.rhel92023-12-20redhat
redhatpostgresql:15-9030020231120082734.rhel92023-12-13redhat
redhatrh-postgresql12-postgresql-0:12.17-1.el72023-12-13redhat
redhatrh-postgresql13-postgresql-0:13.13-1.el72023-12-13redhat
redhatpostgresql-0:13.13-1.el9_32023-12-13redhat
redhatpostgresql:12-8090020231128173330.a75119d52023-12-11redhat
redhatpostgresql:12-8040020231127153301.522a0ee42023-12-07redhat
redhatpostgresql:13-8040020231127154806.522a0ee42023-12-07redhat
redhatpostgresql:12-8060020231128165328.ad008a3a2023-12-06redhat
redhatpostgresql:12-8020020231128165246.4cda2c842023-12-06redhat
redhatpostgresql:12-8080020231128165335.63b345852023-12-05redhat
redhatpostgresql-0:13.13-1.el9_22023-11-30redhat
redhatpostgresql:13-8060020231114115246.ad008a3a2023-11-29redhat
redhatpostgresql:13-8080020231114105206.63b345852023-11-29redhat
redhatpostgresql:13-8090020231114113712.a75119d52023-11-29redhat
redhatpostgresql-0:13.13-1.el9_02023-11-28redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-25 14:16 UTCEPSS rescore
  2. 2026-07-24 14:16 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:30 UTCEG score recompute
  5. 2026-07-22 23:16 UTCEG score recompute▲ 2.20
  6. 2026-07-22 14:07 UTCEPSS rescore
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  8. 2026-07-21 15:23 UTCEPSS rescore
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  20. 2026-07-15 01:55 UTCOSV refresh
  21. 2026-07-13 22:28 UTCEPSS rescore
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  23. 2026-07-13 06:11 UTCEPSS rescore
  24. 2026-07-12 05:45 UTCEPSS rescore
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  1. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-09 19:08 UTCEPSS rescore
  3. 2026-07-08 15:13 UTCEPSS rescore
  4. 2026-07-07 13:45 UTCEPSS rescore
  5. 2026-07-07 13:44 UTCEPSS rescore
  6. 2026-07-06 16:26 UTCEPSS rescore
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  18. 2026-06-28 04:55 UTCEPSS rescore
  19. 2026-06-27 03:07 UTCEPSS rescore
  20. 2026-06-27 02:39 UTCOSV refresh
  21. 2026-06-25 13:48 UTCEPSS rescore
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  23. 2026-06-24 14:04 UTCEPSS rescore
  24. 2026-06-24 14:04 UTCEPSS rescore
  25. 2026-06-24 06:33 UTCNVD updateCVSS v3 → 4.4 · severity → MEDIUM
  26. 2026-06-23 21:31 UTCEPSS rescore
  27. 2026-06-23 21:31 UTCEPSS rescore
  28. 2026-06-22 14:24 UTCEPSS rescore
  29. 2026-06-22 14:24 UTCEPSS rescore
  30. 2026-06-21 14:55 UTCEPSS rescore
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  41. 2026-06-14 23:16 UTCEPSS rescore
  42. 2026-06-13 22:59 UTCEPSS rescore
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  44. 2026-06-12 23:11 UTCEPSS rescore
  45. 2026-06-11 13:59 UTCEPSS rescore
  46. 2026-06-10 22:17 UTCEPSS rescore
  47. 2026-06-10 13:21 UTCEPSS rescore
  48. 2026-06-09 12:49 UTCOSV refresh
  49. 2026-06-08 14:16 UTCEPSS rescore
  50. 2026-06-08 14:16 UTCEPSS rescore
  51. 2026-06-07 15:24 UTCEPSS rescore
  52. 2026-06-07 15:24 UTCEPSS rescore
  53. 2026-06-06 13:46 UTCEPSS rescore
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  75. 2026-05-26 07:18 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-5870?
CVE-2023-5870 is a medium vulnerability published on December 10, 2023. A flaw was found in PostgreSQL involving the pgcancelbackend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would…
When was CVE-2023-5870 disclosed?
CVE-2023-5870 was first published in the National Vulnerability Database on December 10, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-5870 actively exploited?
CVE-2023-5870 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5870?
CVE-2023-5870 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2023-5870?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5870, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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