CVE-2022-35507 is a response-header CRLF injection vulnerability in the web interfaces of Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG, specifically pve-http-server). This flaw allows a remote attacker to inject excessively long cookies into a victim's Chromium-based browser, leading to a client-side Denial of Service (DoS). Rated 7.1 HIGH (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H), it requires user interaction and can be exploited remotely with low attack complexity. While not currently in CISA's KEV catalog and with no public exploit code beyond Nuclei templates, its FAUCET Risk Score of 94/100 indicates a significant potential risk, despite minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:proxmox:proxmox_mail_gateway:-:*:*:*:*:*:*:* | ||
< 4.1-3CPE matchmatch criteria | cpe:2.3:a:proxmox:pve_http_server:*:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:proxmox:virtual_environment:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.