CVE-2026-73583 Deserialization in Red Hat Enterprise Linux 10

What is CVE-2026-73583?

CVE-2026-73583 is a medium-severity unsafe deserialization vulnerability in Redhat Enterprise Linux, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access, leading to the termination of the provider-manager process and a denial of service. This could also potentially result in limited unintended information disclosure.

Weakness: CWE-125

Which versions are affected by CVE-2026-73583?

It affects 1 product.

Products include Redhat Enterprise Linux.

How do I fix CVE-2026-73583?

No fix has been published for CVE-2026-73583 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-73583 being exploited?

There is no known exploitation of CVE-2026-73583 in the wild and no public exploit code.

Other vulnerabilities in Redhat Enterprise Linux

• CVE-2018-14667 Red Hat JBoss RichFaces Framework Expression Language Injection Exploited Critical 9.8
• CVE-2021-20325 Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit Critical 9.8
• CVE-2018-25011 Memory corruption in libwebp Critical 9.8
• CVE-2018-25014 Other in libwebp Critical 9.8
• CVE-2014-3585 Supply chain in redhat-upgrade-tool Critical 9.8

All Redhat Enterprise Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gm2c-cxm9-724m, UBUNTU-CVE-2026-73583.