THREATPORT/VULNERABILITY/CVE-2009-0689
MEDIUM SEVERITY

CVE-2009-0689

K Meleon vulnerability

CVSS
6.8
EPSS
28.2%
EPSS pct
98th
Exploited
No known
Array index error in the (1) dtoa implementation in dtoa.c (aka pdtoa.c) and the (2) gdtoa (aka new dtoa) implementation in gdtoa/misc.c in libc, as used in multiple operating systems and products including in FreeBSD 6.4 and 7.2, NetBSD 5.0, OpenBSD 4.5, Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4, K-Meleon 1.5.3, SeaMonkey 1.1.8, and other products, allows context-dependent attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a large precision value in the format argument to a printf function, which triggers incorrect memory allocation and a heap-based buffer overflow during conversion to a floating-point number.
Affected vendor
K Meleon Project
Affected product
K Meleon
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2009-07-01

Risk analysis

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

Its EPSS score of 28.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2009-0689

  • Confirm whether K Meleon Project K Meleon is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-0689.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-0689

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-0689 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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