THREATPORT/VULNERABILITY/CVE-2009-1956
MEDIUM SEVERITY

CVE-2009-1956

Apr Util vulnerability

CVSS
6.4
EPSS
12.0%
EPSS pct
96th
Exploited
No known
Off-by-one error in the apr_brigade_vprintf function in Apache APR-util before 1.3.5 on big-endian platforms allows remote attackers to obtain sensitive information or cause a denial of service (application crash) via crafted input.
Affected vendor
Apache
Affected product
Apr Util
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:P
Weakness type (CWE)
Published
2009-06-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to availability.

Its EPSS score of 12.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2009-1956

  • Confirm whether Apache Apr Util is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-1956.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-1956

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-1956 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2009-1956?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2009-1956.

Start free scan

No credit card. Agentless.

Related vulnerabilities

MEDIUM
CVE-2006-1278
\@1 File Store vulnerability
MEDIUM
CVE-2006-1333
Betaparticle Blog vulnerability
MEDIUM
CVE-2006-1336
Extcalendar vulnerability