[UPDATE] [high] Red Hat Enterprise Linux (JWCrypto and python-markdown): Multiple vulnerabilities allow denial of service
A remote, anonymous attacker can exploit multiple vulnerabilities in Red Hat Enterprise Linux to conduct a denial of service attack.
CSIRTS triage
- What
- Multiple vulnerabilities allow a denial of service attack.
- Who is affected
- Remote, anonymous attackers targeting Red Hat Enterprise Linux.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities.
- Action
- Apply the latest updates to mitigate the vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch Red Hat Enterprise Linux
Get an email when a new Red Hat Enterprise Linux advisory drops — max one per day, one-click unsubscribe.
Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1610
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-2025-695340.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all scored CVEs.
- Low exploitation riskCVE-2026-393730.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-69534 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-39373 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownUSN-8509-1: Python vulnerabilitiesubuntu
Recent advisories for Red Hat Enterprise
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.
- medium[UPDATE] [medium] Red Hat Enterprise Linux (perl-IO-Compress): Vulnerability allows executing arbitrary progra…cert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (crun): Vulnerability allows privilege escalationcert-bund · 2026-07-10
- high[UPDATE] [high] Red Hat Enterprise Linux (Lodash): Vulnerability allows denial of servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (pyasn1): Vulnerability allows Denial of Servicecert-bund · 2026-07-10
- medium[UPDATE] [medium] Red Hat Enterprise Linux (LibRaw): Vulnerability allows code executioncert-bund · 2026-07-10
- high[UPDATE] [high] Red Hat Enterprise Linux (libsoup): Vulnerability allows information disclosurecert-bund · 2026-07-10
More from CERT-Bund (BSI) Security Advisories
- medium[NEW] [medium] DENX U-Boot: Multiple vulnerabilities allow execution of arbitrary code and DoS2026-07-10
- medium[NEW] [medium] Samsung Android: Multiple vulnerabilities2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow unspecified attack2026-07-10
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilities allow denial of service2026-07-10