CVE-2008-4247

CVE-2008-4247 is a high-severity vulnerability in Freebsd with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 4% (89th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-352
• Affected product: Freebsd
• Published: 2008-09-25
• Last modified: 2026-06-16

Description

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser.

Frequently asked questions

What is CVE-2008-4247?

ftpd in OpenBSD 4.3, FreeBSD 7.0, NetBSD 4.0, Solaris, and possibly other operating systems interprets long commands from an FTP client as multiple commands, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and execute arbitrary FTP commands via a long ftp:// URI that leverages an existing session from the FTP client implementation in a web browser.

How severe is CVE-2008-4247?

CVE-2008-4247 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-4247 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4247?

CVE-2008-4247 primarily affects Freebsd. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4247?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-4247 published?

CVE-2008-4247 was published on 2008-09-25 and last updated on 2026-06-16.

References

• ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-014.txt.asc
• http://bugs.proftpd.org/show_bug.cgi?id=3115
• http://secunia.com/advisories/32068
• http://secunia.com/advisories/32070
• http://secunia.com/advisories/33341
• http://security.FreeBSD.org/advisories/FreeBSD-SA-08:12.ftpd.asc
• http://securityreason.com/achievement_securityalert/56
• http://securityreason.com/securityalert/4313
• http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpcmd.y
• http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpcmd.y.diff?r1=1.51&r2=1.52&f=h
• http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpd.c
• http://www.openbsd.org/cgi-bin/cvsweb/src/libexec/ftpd/ftpd.c.diff?r1=1.183&r2=1.184&f=h
• http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html
• http://www.securitytracker.com/id?1020946
• http://www.securitytracker.com/id?1021112

Affected products (3)

• cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:*
• cpe:2.3:o:netbsd:netbsd:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:openbsd:openbsd:4.3:*:*:*:*:*:*:*

More vulnerabilities in Freebsd

• CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
• CVE-2018-17160 — Critical (CVSS 10.0): In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models…
• CVE-2014-3954 — Critical (CVSS 10.0): Stack-based buffer overflow in rtsold in FreeBSD 9.1 through 10.1-RC2 allows remote attackers to cause a denial of…
• CVE-2011-4862 — Critical (CVSS 10.0): Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka…
• CVE-2006-4304 — Critical (CVSS 10.0): Buffer overflow in the sppp driver in FreeBSD 4.11 through 6.1, NetBSD 2.0 through 4.0 beta before 20060823, and…
• CVE-2006-0226 — Critical (CVSS 10.0): Integer overflow in IEEE 802.11 network subsystem (ieee80211_ioctl.c) in FreeBSD before 6.0-STABLE, while scanning for…

All CVEs affecting Freebsd →

Other CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities

• CVE-2025-32642 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in appsbd Vite Coupon vite-coupon allows Remote Code Inclusion.This…
• CVE-2025-23922 — Critical (CVSS 10.0): Cross-Site Request Forgery (CSRF) vulnerability in Harsh iSpring Embedder embed-ispring allows Upload a Web Shell to a…
• CVE-2017-5145 — Critical (CVSS 10.0): An issue was discovered in Carlo Gavazzi VMU-C EM prior to firmware Version A11_U05, and VMU-C PV prior to firmware…
• CVE-2019-25729 — Critical (CVSS 9.8): PDF Signer 3.0 contains a server-side template injection vulnerability that allows unauthenticated attackers to execute…
• CVE-2025-48340 — Critical (CVSS 9.8): Cross-Site Request Forgery (CSRF) vulnerability in Danny Vink User Profile Meta Manager user-profile-meta allows…
• CVE-2025-2907 — Critical (CVSS 9.8): The Order Delivery Date WordPress plugin before 12.3.1 does not have authorization and CSRF checks when importing…

Browse all CWE-352 (Cross-Site Request Forgery (CSRF)) vulnerabilities →