A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type designation can disclose bytes, potentially revealing notable and confidential information. This issue exists due to excessive data output in aggregate function calls, enabling remote users to read some portion of system memory.
CVE-2023-5868
Score 4.3 from GitHub Security Advisory published 2023-12-10. NVD baseline CVSS 4.3; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: 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 computedSeverity43% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 84.8%
- KEV
- Not listed
Published
December 10, 2023
Last Modified
June 23, 2026
Advisory Details (10)
Auto-updated Jun 23, 2026Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update
https://access.redhat.com/errata/RHSA-2023:7695Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update
https://access.redhat.com/errata/RHSA-2023:7694Affected: Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red
https://access.redhat.com/errata/RHSA-2023:7667Affected: Red Hat Enterprise Linux 8.6 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7666Affected: Red Hat Enterprise Linux 8.8 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7656Affected: Red Hat Enterprise Linux 9.2 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7616Affected: Red Hat Enterprise Linux 8.
https://access.redhat.com/errata/RHSA-2023:7581Affected: Red Hat Enterprise Linux 8.6 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7580Affected: Red Hat Enterprise Linux 8.8 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7579Affected: Red Hat Enterprise Linux 9.0 Extended Update Support.
https://access.redhat.com/errata/RHSA-2023:7545Patch Availability(23)
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
(24)
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.
- Microsoft MSRCCVE-2023-58682023-12-11
Postgresql: memory disclosure in aggregate function calls
- Red HatRHSA-2023:7545MODERATE2023-11-09
RHSA-2023:7545 — Moderate
- Red HatRHSA-2023:7579MODERATE2023-11-09
RHSA-2023:7579 — Moderate
- Red HatRHSA-2023:7580MODERATE2023-11-09
RHSA-2023:7580 — Moderate
- Red HatRHSA-2023:7581MODERATE2023-11-09
RHSA-2023:7581 — Moderate
- Red HatRHSA-2023:7616MODERATE2023-11-09
RHSA-2023:7616 — Moderate
- Red HatRHSA-2023:7656MODERATE2023-11-09
RHSA-2023:7656 — Moderate
- Red HatRHSA-2023:7666MODERATE2023-11-09
RHSA-2023:7666 — Moderate
- Red HatRHSA-2023:7667MODERATE2023-11-09
RHSA-2023:7667 — Moderate
- Red HatRHSA-2023:7694MODERATE2023-11-09
RHSA-2023:7694 — Moderate
- Red HatRHSA-2023:7695MODERATE2023-11-09
RHSA-2023:7695 — Moderate
- Red HatRHSA-2023:7714MODERATE2023-11-09
RHSA-2023:7714 — Moderate
- Red HatRHSA-2023:7770MODERATE2023-11-09
RHSA-2023:7770 — Moderate
- Red HatRHSA-2023:7772MODERATE2023-11-09
RHSA-2023:7772 — Moderate
- Red HatRHSA-2023:7784MODERATE2023-11-09
RHSA-2023:7784 — Moderate
- Red HatRHSA-2023:7785MODERATE2023-11-09
RHSA-2023:7785 — Moderate
- Red HatRHSA-2023:7883MODERATE2023-11-09
RHSA-2023:7883 — Moderate
- Red HatRHSA-2023:7884MODERATE2023-11-09
RHSA-2023:7884 — Moderate
- Red HatRHSA-2023:7885MODERATE2023-11-09
RHSA-2023:7885 — Moderate
- Red HatRHSA-2024:0304MODERATE2023-11-09
RHSA-2024:0304 — Moderate
- Red HatRHSA-2024:0332MODERATE2023-11-09
RHSA-2024:0332 — Moderate
- Red HatRHSA-2024:0337MODERATE2023-11-09
RHSA-2024:0337 — Moderate
- UbuntuUSN-6538-1MEDIUM
PostgreSQL vulnerabilities
- UbuntuUSN-6538-2MEDIUM
PostgreSQL vulnerabilities
Data Freshness Timeline
(refreshed 13× in last 7d / 47× 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.
- 2026-07-23 02:30 UTCEG score recompute
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- 2026-06-09 12:49 UTCOSV refresh
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- 2026-05-24 12:28 UTCEG score recompute
- 2026-05-24 12:28 UTCVendor advisory
- 2026-05-24 12:28 UTCGHSA enrichment
- 2026-05-24 02:20 UTCOSV refresh
Frequently asked(5)
What is CVE-2023-5868?
When was CVE-2023-5868 disclosed?
Is CVE-2023-5868 actively exploited?
What is the CVSS score of CVE-2023-5868?
How do I remediate CVE-2023-5868?
Dependency Blast Radius
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