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Full vulnerability report · 2023
CVE-2022-48522High confidence

In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation

n/a · n/a

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path and a public exploit reference; no CISA KEV confirmation is currently recorded.

Patch available
Direct vendor intelligence

Authoritative 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.

1 current
SSA-398330 · CSAF 2.0 · revision 18 · interimSiemens ProductCERTSSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
  • SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)
  • SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)
  • SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)
Summary
In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.
Remediation
Update to V3.1.5 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-51218

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path and a public exploit reference; no CISA KEV confirmation is currently recorded.

Patch available
01

What, why and how

In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.

What

In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

What

In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.

Why

A bounds error lets data be written beyond the intended memory region, potentially corrupting control data.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

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
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Out-of-bounds Write → execute code or commands in the affected security context
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
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-787 ↗

CWE-787: Out-of-bounds Write. The product writes data past the end, or before the beginning, of the intended buffer.

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:N/UI:N/S:U/C:H/I:H/A:H

Common 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.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionPrivilege escalationDenial of serviceCWE-787Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-2113Perl: Schwachstelle ermöglicht Privilegieneskalation

Ein Angreifer kann eine Schwachstelle in Perl ausnutzen, um seine Privilegien zu erhöhen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

ecord?id=CVE-2022-44267 Référence CVE CVE-2022-4450 https://www.cve.org/CVERecord?id=CVE-2022-4450 Référence CVE CVE-2022-44638 https://www.cve.org/CVERecord?id=CVE-2022-44638 Référence CVE CVE-2022-45061 https://www.cve.org/CVERecord?id=CVE-2022-45061 Référence CVE CVE-2022-45873 https://www.cve.org/CVERecord?id=CVE-2022-45873 Référence CVE CVE-2022-4645 https://www.cve.org/CVERecord?id=CVE-2022-4645 Référence CVE CVE-2022-46908 https://www.cve.org/CVERecord?id=CVE-2022-46908 Référence CVE CVE-2022-48281 https://www.cve.org/CVERecord?id=CVE-2022-48281 Référence CVE CVE-2022-48303 https://www.cve.org/CVERecord?id=CVE-2022-48303 Référence CVE CVE-2022-48522 https://www.cve.org/CVERecord?id=CVE-2022-48522 Référence CVE CVE-2022-48554 https://www.cve.org/CVERecord?id=CVE-2022-48554 Référence CVE CVE-2022-48703 https://www.cve.org/CVERecord?id=CVE-2022-48703 Référence CVE CVE-2022-4899 https://www.cve.org/CVERecord?id=CVE-2022-4899 Référence CVE CVE-2022-49043 https://www.cve.org/CVERecord?id=CVE-2022-49043 Référence CVE CVE-2023-0215 https://www.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0216 https://www.cve.org/CVERecord?id=CVE-2023-0216 Référence CVE CVE-2023-0217 https://www.cve.org/CVERecord?id=CVE-2023-0217 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0756Multiples vulnérabilités dans les produits VMware

ecord?id=CVE-2022-40304 Référence CVE CVE-2022-42010 https://www.cve.org/CVERecord?id=CVE-2022-42010 Référence CVE CVE-2022-42011 https://www.cve.org/CVERecord?id=CVE-2022-42011 Référence CVE CVE-2022-42012 https://www.cve.org/CVERecord?id=CVE-2022-42012 Référence CVE CVE-2022-4415 https://www.cve.org/CVERecord?id=CVE-2022-4415 Référence CVE CVE-2022-4450 https://www.cve.org/CVERecord?id=CVE-2022-4450 Référence CVE CVE-2022-44638 https://www.cve.org/CVERecord?id=CVE-2022-44638 Référence CVE CVE-2022-46908 https://www.cve.org/CVERecord?id=CVE-2022-46908 Référence CVE CVE-2022-48303 https://www.cve.org/CVERecord?id=CVE-2022-48303 Référence CVE CVE-2022-48522 https://www.cve.org/CVERecord?id=CVE-2022-48522 Référence CVE CVE-2022-48893 https://www.cve.org/CVERecord?id=CVE-2022-48893 Référence CVE CVE-2022-4899 https://www.cve.org/CVERecord?id=CVE-2022-4899 Référence CVE CVE-2022-49043 https://www.cve.org/CVERecord?id=CVE-2022-49043 Référence CVE CVE-2022-49063 https://www.cve.org/CVERecord?id=CVE-2022-49063 Référence CVE CVE-2022-49168 https://www.cve.org/CVERecord?id=CVE-2022-49168 Référence CVE CVE-2022-49535 https://www.cve.org/CVERecord?id=CVE-2022-49535 Référence CVE CVE-2022-49636 https://www.cve.org/CVERecord?id=CVE-2022-49636 Référence CVE CVE-2022-49728 https://www.cve.org/CVERecord?id=CV

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0297Multiples vulnérabilités dans Juniper

CVERecord?id=CVE-2021-39531 Référence CVE CVE-2021-39533 https://www.cve.org/CVERecord?id=CVE-2021-39533 Référence CVE CVE-2021-39534 https://www.cve.org/CVERecord?id=CVE-2021-39534 Référence CVE CVE-2021-40528 https://www.cve.org/CVERecord?id=CVE-2021-40528 Référence CVE CVE-2021-41039 https://www.cve.org/CVERecord?id=CVE-2021-41039 Référence CVE CVE-2022-2795 https://www.cve.org/CVERecord?id=CVE-2022-2795 Référence CVE CVE-2022-3996 https://www.cve.org/CVERecord?id=CVE-2022-3996 Référence CVE CVE-2022-4304 https://www.cve.org/CVERecord?id=CVE-2022-4304 Référence CVE CVE-2022-4450 https://www.cve.org/CVERecord?id=CVE-2022-4450 Référence CVE CVE-2022-48522 https://www.cve.org/CVERecord?id=CVE-2022-48522 Référence CVE CVE-2022-48554 https://www.cve.org/CVERecord?id=CVE-2022-48554 Référence CVE CVE-2023-0215 https://www.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0216 https://www.cve.org/CVERecord?id=CVE-2023-0216 Référence CVE CVE-2023-0217 https://www.cve.org/CVERecord?id=CVE-2023-0217 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-0401 https://www.cve.org/CVERecord?id=CVE-2023-0401 Référence CVE CVE-2023-0466 https://www.cve.org/CVERecord?id=CVE-2023-0466 Référence CVE CVE-2023-0809 https://www.cve.org/CVERecord?id=CVE-2023-0809

Official advisory
CERT-FR · French · CERTFR-2023-AVI-1015Multiples vulnérabilités dans les produits Siemens

rd?id=CVE-2022-4450 Référence CVE CVE-2022-45061 https://www.cve.org/CVERecord?id=CVE-2022-45061 Référence CVE CVE-2022-45873 https://www.cve.org/CVERecord?id=CVE-2022-45873 Référence CVE CVE-2022-46141 https://www.cve.org/CVERecord?id=CVE-2022-46141 Référence CVE CVE-2022-46143 https://www.cve.org/CVERecord?id=CVE-2022-46143 Référence CVE CVE-2022-46908 https://www.cve.org/CVERecord?id=CVE-2022-46908 Référence CVE CVE-2022-47374 https://www.cve.org/CVERecord?id=CVE-2022-47374 Référence CVE CVE-2022-47375 https://www.cve.org/CVERecord?id=CVE-2022-47375 Référence CVE CVE-2022-48303 https://www.cve.org/CVERecord?id=CVE-2022-48303 Référence CVE CVE-2022-48522 https://www.cve.org/CVERecord?id=CVE-2022-48522 Référence CVE CVE-2022-48560 https://www.cve.org/CVERecord?id=CVE-2022-48560 Référence CVE CVE-2023-0215 https://www.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-0361 https://www.cve.org/CVERecord?id=CVE-2023-0361 Référence CVE CVE-2023-0464 https://www.cve.org/CVERecord?id=CVE-2023-0464 Référence CVE CVE-2023-0465 https://www.cve.org/CVERecord?id=CVE-2023-0465 Référence CVE CVE-2023-0466 https://www.cve.org/CVERecord?id=CVE-2023-0466 Référence CVE CVE-2023-0687 https://www.cve.org/CVERecord?id=CVE-2023-0687

Official advisory
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.
Patch available
Affected
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0); SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0); SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0); SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0); SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Update to V3.1.5 or later version
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 22 Aug 2023 · Last source change 3 Oct 2024, 14:21 UTC · CWE-787 · Out-of-bounds Write

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-51218
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2022-51218↗Vendor CSAF · Siemens ProductCERT↗CISA Vulnrichment SSVC evidence↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
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.
Free version - for non-commercial use only.CVE-2022-48522 · cve.blacktree.nl