CVE-2009-0689

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 28%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
—
EG Score
0.0(none)
EPSS
97.9%
KEV
Not listed

Published

July 1, 2009

Last Modified

April 23, 2026

References (106)

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuthunderbird (2.0.0.24+build1+nobinonly-0ubuntu0.9.10.1) @ karmic2026-05-30ubuntu
ubuntukdelibs4c2a (4:3.5.10-0ubuntu6.4) @ intrepid2026-05-30ubuntu
redhatphp-0:5.1.6-40.el5_9.22014-03-18redhat
redhatphp-0:5.1.6-44.el5_102014-03-18redhat
redhatthunderbird-0:1.5.0.12-25.el42010-03-17redhat
redhatthunderbird-0:2.0.0.24-2.el5_42010-03-17redhat
redhatkdelibs-6:3.5.4-25.el5_4.12009-11-24redhat
redhatseamonkey-0:1.0.9-50.el4_82009-10-27redhat
redhatxulrunner-0:1.9.0.15-3.el5_42009-10-27redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(9)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 17:41 UTCOSV refresh
  2. 2026-07-06 16:23 UTCEPSS rescore
  3. 2026-07-06 02:19 UTCEPSS rescore
  4. 2026-07-06 02:19 UTCEPSS rescore
  5. 2026-07-05 02:26 UTCEPSS rescore
  6. 2026-07-05 02:26 UTCEPSS rescore
  7. 2026-07-01 15:02 UTCEPSS rescore
  8. 2026-06-29 14:02 UTCEPSS rescore
  9. 2026-06-29 14:02 UTCEPSS rescore
  10. 2026-06-28 04:52 UTCEPSS rescore
  11. 2026-06-28 04:52 UTCEPSS rescore
  12. 2026-06-27 03:05 UTCEPSS rescore
  13. 2026-06-25 13:46 UTCEPSS rescore
  14. 2026-06-25 13:46 UTCEPSS rescore
  15. 2026-06-24 14:02 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-23 21:29 UTCEPSS rescore
  18. 2026-06-23 21:29 UTCEPSS rescore
  19. 2026-06-22 14:22 UTCEPSS rescore
  20. 2026-06-22 14:22 UTCEPSS rescore
  21. 2026-06-21 14:53 UTCEPSS rescore
  22. 2026-06-21 01:56 UTCEPSS rescore
  23. 2026-06-21 01:56 UTCEPSS rescore
  24. 2026-06-19 04:55 UTCOSV refresh
  25. 2026-06-18 17:49 UTCEPSS rescore
Show 43 more
  1. 2026-06-18 17:49 UTCEPSS rescore
  2. 2026-06-17 17:49 UTCEPSS rescore
  3. 2026-06-17 17:49 UTCEPSS rescore
  4. 2026-06-16 17:49 UTCEPSS rescore
  5. 2026-06-16 17:49 UTCEPSS rescore
  6. 2026-06-15 17:44 UTCEPSS rescore
  7. 2026-06-14 23:14 UTCEPSS rescore
  8. 2026-06-14 23:14 UTCEPSS rescore
  9. 2026-06-13 22:57 UTCEPSS rescore
  10. 2026-06-12 23:08 UTCEPSS rescore
  11. 2026-06-12 23:08 UTCEPSS rescore
  12. 2026-06-10 22:14 UTCEPSS rescore
  13. 2026-06-10 13:17 UTCEPSS rescore
  14. 2026-06-08 14:13 UTCEPSS rescore
  15. 2026-06-05 22:44 UTCEPSS rescore
  16. 2026-06-05 22:44 UTCEPSS rescore
  17. 2026-06-05 06:07 UTCEPSS rescore
  18. 2026-06-04 13:09 UTCEPSS rescore
  19. 2026-06-04 13:09 UTCEPSS rescore
  20. 2026-06-02 20:10 UTCEPSS rescore
  21. 2026-06-02 20:10 UTCEPSS rescore
  22. 2026-05-31 22:28 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-31 00:13 UTCEPSS rescore
  25. 2026-05-31 00:13 UTCEPSS rescore
  26. 2026-05-30 16:20 UTCEG score recompute
  27. 2026-05-30 16:20 UTCVendor advisory
  28. 2026-05-30 16:20 UTCGHSA enrichment
  29. 2026-05-29 13:40 UTCEPSS rescore
  30. 2026-05-28 13:42 UTCEPSS rescore
  31. 2026-05-28 13:42 UTCEPSS rescore
  32. 2026-05-28 13:42 UTCEPSS rescore
  33. 2026-05-27 08:14 UTCOSV refresh
  34. 2026-05-26 07:16 UTCEPSS rescore
  35. 2026-05-26 07:16 UTCEPSS rescore
  36. 2026-05-24 16:43 UTCEPSS rescore
  37. 2026-05-22 21:15 UTCEPSS rescore
  38. 2026-05-22 21:15 UTCEPSS rescore
  39. 2026-05-20 22:37 UTCEPSS rescore
  40. 2026-05-20 22:37 UTCEPSS rescore
  41. 2026-05-20 11:21 UTCEPSS rescore
  42. 2026-05-20 11:20 UTCEPSS rescore
  43. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 GitHub PoC) (9 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCFullmetal5/str2hax
    First seen Dec 18, 2018

    An implementation of CVE-2009-0689 for the Nintendo Wii.

    Open source ↗
  • Exploit-DBEDB-33480✓ verified
    First seen Jan 8, 2010

    MATLAB R2009b - 'dtoa' Implementation Memory Corruption

    Open source ↗
  • Exploit-DBEDB-33479✓ verified
    First seen Jan 8, 2010

    Apple Mac OSX 10.x - 'libc/strtod(3)' Memory Corruption

    Open source ↗
  • Exploit-DBEDB-10380
    First seen Dec 11, 2009

    Sunbird 0.9 - Array Overrun Code Execution

    Open source ↗
  • Exploit-DBEDB-33364✓ verified
    First seen Nov 20, 2009

    KDE 4.3.3 - KDELibs 'dtoa()' Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-33363✓ verified
    First seen Nov 20, 2009

    Opera Web Browser 10.01 - 'dtoa()' Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-10186✓ verified
    First seen Nov 19, 2009

    K-Meleon 1.5.3 - Remote Array Overrun

    Open source ↗
  • Exploit-DBEDB-10187✓ verified
    First seen Nov 19, 2009

    Opera 10.01 - Remote Array Overrun

    Open source ↗
  • Exploit-DBEDB-10185✓ verified
    First seen Nov 19, 2009

    SeaMonkey 1.1.8 - Remote Array Overrun

    Open source ↗
  • Exploit-DBEDB-10184✓ verified
    First seen Nov 19, 2009

    KDE KDELibs 4.3.3 - Remote Array Overrun

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2009-0689?
CVE-2009-0689 is a none vulnerability published on July 1, 2009. 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…
When was CVE-2009-0689 disclosed?
CVE-2009-0689 was first published in the National Vulnerability Database on July 1, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-0689 actively exploited?
CVE-2009-0689 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-0689?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-0689, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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