How severe is CVE-2015-2502?

CVE-2015-2502 has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2015-2502?

Affected package information for CVE-2015-2502 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2015-2502?

No fixed version has been published for CVE-2015-2502 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2015-2502 actively exploited in the wild?

Yes. There are 4 known exploit references for CVE-2015-2502, including 4 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2015-2502?

CVE-2015-2502 has an EPSS (Exploit Prediction Scoring System) score of 21.7%, placing it in the 96th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

Is CVE-2015-2502 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2015-2502 (Microsoft Internet Explorer Memory Corruption Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-04-13. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-04. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2015-2502?

CVE-2015-2502 is classified as Out-of-bounds Write (CWE-787). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2015-2502?

CVE-2015-2502 affects microsoft internet explorer (5 versions, e.g. 7, 8, 9…). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2015-2502 published, and has it been updated?

CVE-2015-2502 was published on August 19, 2015 and was last updated on April 22, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-04-13 — agencies required to remediate by 2022-05-04

CVE-2015-2502

HIGH

Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption…

Published

Aug 19, 2015

Updated

Apr 22, 2026

Affected

0 pkgs

Patched

None yet

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

21.7%probability of exploitation in next 30 days

Moderate Risk96th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability," as exploited in the wild in August 2015.

Affected Products

1 product · 5 configurations

Application

internet explorermicrosoft

5 versions

7891011

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Microsoft Internet Explorer 7 through 11 allows remote attackers to exec…

docs.microsoft.comGoogle-sheetAug 2015

Microsoft Internet Explorer 7 through 11 allows remote attackers to exec…

nvd.nist.govNVDOct 2018

Microsoft Internet Explorer 7 through 11 allows remote attackers to exec…

cisa.govCISAApr 2022

Microsoft Internet Explorer 7 through 11 allows remote attackers to exec…

twitter.comNVDJul 2024

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2015-2502 in your stack?

O3 detects CVE-2015-2502 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

8.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

Required

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE Classification

CWE-787Out-of-bounds Write

Weaponization

No known public exploit tooling found.

Timeline

First exploit

Aug 18, 2015

Disclosed

Aug 19, 2015

KEV added

Apr 13, 2022

Last updated

Apr 22, 2026

Identifiers

CVE-2015-2502

References

Advisorysecurityfocus.com Advisorysecuritytracker.com Advisorysecurityfocus.com Advisorysecuritytracker.com Fixdocs.microsoft.com Fixdocs.microsoft.com Exploit / PoCtwitter.com Exploit / PoCtwitter.com Webtwitter.com Websecurityweek.com Webtwitter.com Websecurityweek.com Webcisa.gov

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.