CVE-2026-17543: SQL injection in ext-pgsql via E'...' backslash breakout

CSIRTS triage

What

Insufficient information provided in advisory.

Who is affected

Unknown without severity or description.

Urgency

Unable to assess; severity not disclosed.

Action

Obtain full CVE-2026-17543 advisory details for proper risk assessment.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Microsoft Security Response Center (INTL · vendor-psirt · site)

Severity

critical — CVSS 9.8

Published

2026-07-14

Exploitation

Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-17543

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Low exploitation riskCVE-2026-175430.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• unknownUSN-8743-1: PHP vulnerabilitiesubuntu
• unknownUSN-8734-1: PHP vulnerabilitiesubuntu
• high[UPDATE] [hoch] PHP: Mehrere Schwachstellencert-bund
• unknownPHP Multiple Vulnerabilitieshkcert
• unknownMultiple vulnerabilities in PHP (July 31, 2026)cert-fr-avis
• unknownDSA-6406-1 php8.4 - security updatedebian
• criticalCVE-2026-17543: Improper escaping of backslashes in attacker-provided parameters would allow for trivial SQL i…nvd