CVE-2025-4948 is a denial-of-service vulnerability in the libsoup HTTP library, affecting applications that process specially crafted multipart messages. An integer underflow during message processing can lead to invalid memory access and application crashes. Rated 7.5 HIGH, this vulnerability can be exploited remotely with low complexity and no user interaction, resulting in a complete loss of availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion beyond a single mention on GitHub.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat Enterprise Linux 9 | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | Range not provided by sourceCNA affecteddefault affected | |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | Range not provided by sourceCNA affecteddefault affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Oct 27, 2025libsoup: Integer Underflow in soup_multipart_new_from_message() Leading to Denial of Service in libsoup
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