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Emerging threatsCritical

CVE-2007-5107Ask Toolbar Memory Corruption

Stack-based buffer overflow in the AskJeevesToolBar.SettingsPlugin.1 ActiveX control in askBar.dll in IAC Search & Media ask.com Ask Toolbar 4.0.2.53 and earlier allows remote attackers to execute arbitrary code via a long ShortFormat property value.

Published Sep 26, 2007 · Updated Apr 22, 2026

Key Facts

Patch immediately
  • CVE-2007-5107 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Ask Toolbar (Ask.com).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 36% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Ask Toolbar 4.0.2.53.
  • Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

36%

Higher than 98.4% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

57/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

2

Proof-of-concept links

In-the-wild evidence

1

Reports of active use

Advisories And Exploit References

Description

Stack-based buffer overflow in the AskJeevesToolBar.SettingsPlugin.1 ActiveX control in askBar.dll in IAC Search & Media ask.com Ask Toolbar 4.0.2.53 and earlier allows remote attackers to execute arbitrary code via a long ShortFormat property value. NOTE: some of these details are obtained from third party information.

NOTE: the researcher claims that this is the same as CVE-2007-5108, but there is insufficient detail for CVE-2007-5108 to be certain.

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Ask ToolbarAsk.comSee advisory4.0.2.53

Patched Releases

Ask Toolbar

4.0.2.53

Timeline

  1. Publicly disclosed

    Sep 26, 2007

  2. Last updated

    Apr 22, 2026

Weakness Type

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

4 more references in the full CVE brief

FAQ

Common Questions.

Is CVE-2007-5107 On Your Attack Surface?

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Figures as of Oct 20, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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