CVE-2026-33257 is a denial of service vulnerability in an internal web server that permits unlimited memory allocation through specially crafted web requests. The vulnerability affects systems with the internal web server enabled, though this component is disabled by default. The vulnerability carries a CVSS score of 5.3 (MEDIUM) with a network-based attack vector requiring no authentication or user interaction. Attack complexity is low, meaning exploitation is straightforward. The impact is limited to availability, as the attack causes service disruption through resource exhaustion rather than compromising confidentiality or integrity. There is no current evidence of active exploitation. The vulnerability does not appear on the Known Exploited Vulnerabilities catalog, and community attention remains minimal, with an EPSS score of 0.000090000 indicating very low real-world exploit probability. No public exploit code has been reported, and the vulnerability remains inactive on threat intelligence lists.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.9.0, < 4.9.14CPE matchmatch criteria | cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* | ||
>= 5.0.0, < 5.0.4CPE matchmatch criteria | cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:* | ||
>= 1.9.0, < 1.9.13CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* | ||
>= 2.0.0, < 2.0.4CPE matchmatch criteria | cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:* | ||
>= 5.2.0, < 5.2.9CPE matchmatch criteria | cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:* |
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:L
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.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.