How severe is CVE-2013-4359?

CVE-2013-4359 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-4359 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4359?

CVE-2013-4359 primarily affects Proftpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4359?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4359 published?

CVE-2013-4359 was published on 2013-09-30 and last updated on 2026-06-16.

CVE-2013-4359

CVE-2013-4359 is a medium-severity vulnerability in Proftpd with a CVSS 2.0 base score of 5.0. 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-189.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Proftpd
Published: 2013-09-30
Last modified: 2026-06-16

Description

Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.

Frequently asked questions

What is CVE-2013-4359?: Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.
How severe is CVE-2013-4359?: CVE-2013-4359 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2013-4359 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4359?: CVE-2013-4359 primarily affects Proftpd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4359?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4359 published?: CVE-2013-4359 was published on 2013-09-30 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:proftpd:proftpd:1.3.4:d:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:1.3.5:rc3:*:*:*:*:*:*

More vulnerabilities in Proftpd

CVE-2015-3306 — Critical (CVSS 10.0): The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and…
CVE-2010-4221 — Critical (CVSS 10.0): Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow…
CVE-2010-20103 — Critical (CVSS 9.8): A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and…
CVE-2019-12815 — Critical (CVSS 9.8): An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for remote code execution and…
CVE-2011-4130 — Critical (CVSS 9.0): Use-after-free vulnerability in the Response API in ProFTPD before 1.3.3g allows remote authenticated users to execute…
CVE-2020-9273 — High (CVSS 8.8): In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a…

All CVEs affecting Proftpd →

Other CWE-189 (Numeric Errors) vulnerabilities

CVE-2015-8396 — Critical (CVSS 10.0): Integer overflow in the ImageRegionReader::ReadIntoBuffer function in…
CVE-2015-7205 — Critical (CVSS 10.0): Integer underflow in the RTPReceiverVideo::ParseRtpPacket function in Mozilla Firefox before 43.0 and Firefox ESR 38.x…
CVE-2015-6575 — Critical (CVSS 10.0): SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I does not properly consider integer promotion, which…
CVE-2015-3864 — Critical (CVSS 10.0): Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in…
CVE-2015-3836 — Critical (CVSS 10.0): The Parse_wave function in arm-wt-22k/lib_src/eas_mdls.c in the Sonivox DLS-to-EAS converter in Android before 5.1.1…
CVE-2015-3834 — Critical (CVSS 10.0): Multiple integer overflows in the BnHDCP::onTransact function in media/libmedia/IHDCP.cpp in libstagefright in Android…

Browse all CWE-189 (Numeric Errors) vulnerabilities →