[UPDATE] [critical] Kemp LoadMaster: Multiple vulnerabilities

criticalpublic exploitCVE-2026-8037 CVE-2026-33691

An attacker can exploit multiple vulnerabilities in Kemp LoadMaster to bypass security measures, manipulate data, or execute arbitrary code.

CSIRTS triage

vendor: Kemp product: LoadMaster Authentication bypass Information disclosure Remote code execution

What: Multiple vulnerabilities allow an attacker to bypass security measures, manipulate data, or execute arbitrary code.
Who is affected: Users of Kemp LoadMaster.
Urgency: Critical urgency due to the potential for severe impacts including arbitrary code execution.
Action: Update Kemp LoadMaster to the latest version to remediate these vulnerabilities.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: critical
Published: 2026-07-02
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1812

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.

Exploitation confirmedCVE-2026-8037Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99.9% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-336913.6% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 88% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-8037	coverage & exploitation status	NVD · CVE.org
CVE-2026-33691	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

criticalexploitedProgress security advisory (AV26-552) – Update 2cccs
highexploitedCISA Adds One Known Exploited Vulnerability to Catalogcisa
criticalexploitedCVE-2026-8037: Progress LoadMaster Command Injection Vulnerabilitycisa-kev
unknownMultiple Vulnerabilities in Progress LoadMaster (July 15, 2026)cert-fr-avis

Recent advisories for Kemp LoadMaster

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

criticalexploitedCVE-2024-1212: Progress Kemp LoadMaster OS Command Injection Vulnerabilitycisa-kev · 2024-11-18