CVE-2025-54972 is an improper neutralization of CRLF sequences vulnerability in the FortiMail user GUI. Affected versions are FortiMail 7.6.0 through 7.6.3, 7.4.0 through 7.4.5, all 7.2 versions, and all 7.0 versions. The flaw allows response header injection when a user is convinced to click a specifically crafted link, indicating that attacker-controlled input is incorporated into an HTTP response without properly neutralizing carriage return and line feed characters. This can enable an attacker to inject arbitrary headers into the server response delivered to the victim user.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.