Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 2.77% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2023
CVE-2023-5868High confidence
Postgresql: memory disclosure in aggregate function calls
Red Hat · Red Hat Advanced Cluster Security 4.2
Official source articles: Siemens SSA-784301 ↗ · Red Hat RHSA-2023:7545 ↗. Check the applicable product and release in the original source.
4.3MediumCVSS 3.1
Patch only the product branches with a verified fix
Fix availability varies by productMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict the affected network interface to trusted sources where business-safe.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs Red Hat Red Hat Advanced Cluster Security 4.2 and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
- Siemens ProductCERT: 1 affected or under-investigation product state without a fixed product state in the same current advisory
Distribution package intelligence
6 package statesRelease-specific package status
Alpine, Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Alpine v3.23v3.23 · community | postgresql16 | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 16.1-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.22v3.22 · community | postgresql15 | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 15.5-r0 | Alpine Security Database ↗Source updated 11 Sep 2026 |
| Alpine v3.22v3.22 · main | postgresql16 | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 16.1-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Alpine v3.21v3.21 · community | postgresql15 | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 15.5-r0 | Alpine Security Database ↗Source updated 19 Aug 2026 |
| Alpine v3.21v3.21 · main | postgresql16 | Vendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected. | 16.1-r0 | Alpine Security Database ↗Source updated 3 Oct 2026 |
| Debian bookwormbookworm · source | postgresql-15 | Vendor fix publishedDebian records a fixed source-package version for this release. | 15.5-0+deb12u1 | Debian Security Tracker ↗Source updated 6 Oct 2026 |
Direct vendor intelligence
1 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
SSA-784301 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-784301: Multiple Vulnerabilities in SINEC NMS Before V3.0
The vendor explicitly identifies these products as affected by this CVE.
- SINEC NMS
- Summary
- 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.
- Remediation
- Update to V3.0 or later version
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product01
What, why and how
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.
What
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.
Why
The product calls a function, procedure, or routine, but the caller specifies an argument that is the wrong data type, which may lead to resultant weaknesses.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.
What
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.
Why
The product calls a function, procedure, or routine, but the caller specifies an argument that is the wrong data type, which may lead to resultant weaknesses.
How
An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may obtain information outside the intended access boundary.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- a network path → Function Call With Incorrect Argument Type → obtain information outside the intended access boundary
- Attack surface
- Network
- Privileges required
- Low: a basic authenticated account is required
- User interaction
- None
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Unchanged: impact remains within the vulnerable component's security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-686 ↗
CWE-686: Function Call With Incorrect Argument Type. The product calls a function, procedure, or routine, but the caller specifies an argument that is the wrong data type, which may lead to resultant weaknesses.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.- Post-exploitation / living off the land
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Fix availability varies by product
- Affected
- SINEC NMS
- Fixed
- Red Hat Advanced Cluster Security 4.2: 4.2.4-6 < *, 4.2.4-7 < *
- Red Hat Enterprise Linux 8: 8090020231114113712.a75119d5 < *, 8090020231128173330.a75119d5 < *, 8090020231114113548.a75119d5 < *
- Red Hat Enterprise Linux 8.2 Advanced Update Support: 8020020231128165246.4cda2c84 < *
- Red Hat Enterprise Linux 8.2 Telecommunications Update Service: 8020020231128165246.4cda2c84 < *
- Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions: 8020020231128165246.4cda2c84 < *
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: 8040020231127153301.522a0ee4 < *, 8040020231127154806.522a0ee4 < *
- Red Hat Enterprise Linux 8.4 Telecommunications Update Service: 8040020231127153301.522a0ee4 < *, 8040020231127154806.522a0ee4 < *
- Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions: 8040020231127153301.522a0ee4 < *, 8040020231127154806.522a0ee4 < *
- Red Hat Enterprise Linux 8.6 Extended Update Support: 8060020231114115246.ad008a3a < *, 8060020231128165328.ad008a3a < *
- Red Hat Enterprise Linux 8.8 Extended Update Support: 8080020231114105206.63b34585 < *, 8080020231128165335.63b34585 < *, 8080020231113134015.63b34585 < *
- Red Hat Enterprise Linux 9: 0:13.13-1.el9_3 < *, 9030020231120082734.rhel9 < *
- Red Hat Enterprise Linux 9.0 Extended Update Support: 0:13.13-1.el9_0 < *
- Red Hat Enterprise Linux 9.2 Extended Update Support: 0:13.13-1.el9_2 < *, 9020020231115020618.rhel9 < *
- Red Hat Software Collections for Red Hat Enterprise Linux 7: 0:12.17-1.el7 < *, 0:13.13-1.el7 < *
- RHACS-3.74-RHEL-8: 3.74.8-9 < *, 3.74.8-7 < *
- RHACS-4.1-RHEL-8: 4.1.6-6 < *
- Action
- Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
- Workaround
- No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04
Evidence and provenance
Published 10 Dec 2023 · Last source change 23 Jun 2026, 17:19 UTC · CWE-686 · Function Call With Incorrect Argument Type
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2023-58142
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.
CVE published
Fixed release or patch reference recorded
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.