CVE-2015-2482Jscript Memory Corruption
The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted replace operation with a…
Published Oct 13, 2015 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2015-2482 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Jscript (Microsoft), Vbscript (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 32% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- 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)
32%
Higher than 98.3% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
43/100
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
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted replace operation with a JavaScript regular expression, aka "Scripting Engine Memory Corruption Vulnerability."
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| JscriptMicrosoft | 5.6, 5.7, 5.8 | n/a |
| VbscriptMicrosoft | 5.6, 5.7, 5.8 | n/a |
Timeline
Publicly disclosed
Oct 13, 2015
Last updated
May 6, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory20151013 JScript 5.7 (MSIE 8) RegExpBase::FBadHeader regular expression use-after-free
- advisory1033800
- advisoryzerodayinitiative.com · ZDI-15-515
- exploitExploitDB-40798
- otherMS15-106
FAQ
Common Questions.
The Microsoft (1) VBScript 5.7 and 5.8 and (2) JScript 5.7 and 5.8 engines, as used in Internet Explorer 8 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted replace operation with a JavaScript regular expression, aka "Scriptin…
Affected: Jscript (Microsoft) versions 5.6, 5.7, 5.8; Vbscript (Microsoft) versions 5.6, 5.7, 5.8. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2015-2482 On Your Attack Surface?
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