CVE-2025-10035
A deserialization vulnerability in the License Servlet of Fortra's GoAnywhere MFT allows an actor with a validly forged license response signature to deserialize an arbitrary actor-controlled object, possibly leading to command injection.
do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Can a WAF block it? Partly. Cloudflare publishes WAF a rule written for this CVE. Such rules block the known exploit requests and buy time, but attackers can change the request to get past them, so they do not replace the patch.
Cloudflare · 1 rule (Block) · since 24 Sept 2025
- Fortra GoAnywhere - Auth Bypass - CVE:CVE-2025-10035 · Cloudflare Managed Ruleset
Also consider: patch · enable the vendor rule in block mode · input validation · RASP · allow-list classes
Based on WAF vendor rules published for this CVE. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.
Is CVE-2025-10035 being exploited?
Yes. CVE-2025-10035 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2025-10035?
CVE-2025-10035 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-10035?
Yes. A fix has been recorded for CVE-2025-10035. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-10035 affect?
CVE-2025-10035 affects fortra:goanywhere_managed_file_transfer. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
- affected<= 7.8.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.
public exploits
Unvetted proof-of-concept code on GitHub: 5 GitHub proofs of concept · 1 Nuclei template
- GoAnywhere - Authentication Bypass · detection template · critical
- rxerium/CVE-2025-10035 · 18 ★
- ThemeHackers/CVE-2025-10035 · 1 ★
- orange0Mint/CVE-2025-10035_GoAnywhere · 0 ★
- sentinel-aidefense/CVE-2025-10035 · 0 ★
Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.
cisa ssvc
- exploitation
- active
- automatable
- yes
- technical impact
- total
Assessed by CISA 19 Sept 2025 (SSVC 2.0.3).
timeline
- 18 Sept 2025Published
- 19 Sept 2025CISA SSVC assessment: exploitation active · same day later
- 20 Sept 2025First proof-of-concept repository on GitHub (unvetted) · 1 day later
- 29 Sept 2025Added to CISA KEV (exploited in the wild) · 9 days later
- 20 Oct 2025CISA remediation due date (US federal agencies) · 21 days later
- 4 Aug 2026CVE record last updated · 288 days (about 10 months) later
- 2 Nov 2026Analysed by vulneraibility.com · 91 days (about 3 months) later
- Linkfortra.com /security/advisories/product-security/fi-2025-012
- Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-10035
sources
- CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
- NVD: CVSS and CPE data
- CISA KEV catalog: exploitation, date added, due date
- CISA Vulnrichment (ADP): SSVC decision points
- FIRST EPSS: exploit probability and percentile
- Nuclei templates: detection templates
- PoC-in-GitHub: GitHub repositories that claim a proof of concept
- Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.