How severe is CVE-2009-2732?

CVE-2009-2732 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-2732 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2732?

CVE-2009-2732 affects Ntop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-2732?

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

When was CVE-2009-2732 published?

CVE-2009-2732 was published on 2009-08-21 and last updated on 2026-06-16.

CVE-2009-2732

CVE-2009-2732 is a medium-severity vulnerability in Ntop 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ntop
Published: 2009-08-21
Last modified: 2026-06-16

Description

The checkHTTPpassword function in http.c in ntop 3.3.10 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an Authorization HTTP header that lacks a : (colon) character in the base64-decoded string.

Frequently asked questions

What is CVE-2009-2732?: The checkHTTPpassword function in http.c in ntop 3.3.10 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an Authorization HTTP header that lacks a : (colon) character in the base64-decoded string.
How severe is CVE-2009-2732?: CVE-2009-2732 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-2732 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2732?: CVE-2009-2732 affects Ntop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-2732?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2732 published?: CVE-2009-2732 was published on 2009-08-21 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ntop:ntop:*:*:*:*:*:*:*:*

More vulnerabilities in Ntop

CVE-2014-4165 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in ntop allows remote attackers to inject arbitrary web script or HTML via the…

All CVEs affecting Ntop →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →