CVE-2015-0311 — Adobe Flash Player Remote Code Execution Vulnerability

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

• Documented patch — technet.microsoft.com (NIST National Vulnerability Database)

CISA required action CISA

The impacted product is end-of-life and should be disconnected if still in use.

US federal deadline: May 4, 2022 — passed 1625 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (Adobe Flash Player, Microsoft Edge, Microsoft Internet Explorer…).
2. Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
3. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
4. Apply the fixed version or the patch documented under Remediation.
5. EPSS ahead of 100% of scored CVEs: prioritize it in the patch queue.
6. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

Public exploits, PoCs and detection templates

Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.

Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 85.59%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
• Hunt retroactively in logs from before Apr 13, 2022 (KEV listing): exploitation may have started earlier.

Timeline

What happened to this CVE, newest first.

• 2026
• SSVC assessment updated
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• Record published
  Oct 13, 2026
• Fix documented
  Oct 13, 2026 · NIST National Vulnerability Database
• Affected products added · adobe/flash player, suse/linux enterprise desktop, suse/linux enterprise workstation extension, microsoft/internet explo
  Oct 13, 2026 · NIST National Vulnerability Database
• CVSS changed · 9.8
  Oct 13, 2026 · NIST National Vulnerability Database
• Source status changed · → Analyzed
  Oct 13, 2026 · NIST National Vulnerability Database
• Added to CISA KEV (detected)
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• Record created in this database
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• 2022
• Added to CISA KEV catalog
  Apr 12, 2022 · CISA
• 2015
• CVE published
  Jan 23, 2015 · adobe

Source activity

Repeated readings are counted rather than listed.

• 2× References added · Oct 13, 2026 – Oct 13, 2026
• 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

18 on the record

• helpx.adobe.com/security/products/flash-player/apsa15-01.html
  Vendor Advisory, x_refsource_CONFIRM, NIST National Vulnerability Database
• technet.microsoft.com/library/security/2755801
  Patch, Vendor Advisory, x_refsource_CONFIRM, NIST National Vulnerability Database
• www.cisa.gov/known-exploited-vulnerabilities-catalog
  US Government Resource, NIST National Vulnerability Database
• github.com/cisagov/vulnrichment/issues/196
  Issue Tracking, NIST National Vulnerability Database
• lists.opensuse.org/opensuse-security-announce/2015-01/msg00027.html
  Mailing List, Third Party Advisory, vendor-advisory, x_refsource_SUSE, NIST National Vulnerability Database
• secunia.com/advisories/62543
  Broken Link, third-party-advisory, x_refsource_SECUNIA, NIST National Vulnerability Database
• github.com/advisories/GHSA-xvc3-rmmw-6hxp
  GitHub Security Advisories
• www.securityfocus.com/bid/72283
  Broken Link, Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID, NIST National Vulnerability Database
• security.gentoo.org/glsa/glsa-201502-02.xml
  Third Party Advisory, vendor-advisory, x_refsource_GENTOO, NIST National Vulnerability Database
• helpx.adobe.com/security/products/flash-player/apsb15-03.html
  Broken Link, x_refsource_CONFIRM, NIST National Vulnerability Database
• secunia.com/advisories/62660
  Broken Link, third-party-advisory, x_refsource_SECUNIA, NIST National Vulnerability Database
• secunia.com/advisories/62650
  Broken Link, third-party-advisory, x_refsource_SECUNIA, NIST National Vulnerability Database
• lists.opensuse.org/opensuse-security-announce/2015-01/msg00031.html
  Mailing List, Third Party Advisory, vendor-advisory, x_refsource_SUSE, NIST National Vulnerability Database
• nvd.nist.gov/vuln/detail/CVE-2015-0311
  GitHub Security Advisories
• www.securitytracker.com/id/1031597
  Broken Link, Third Party Advisory, VDB Entry, vdb-entry, x_refsource_SECTRACK, NIST National Vulnerability Database
• malware.dontneedcoffee.com/2015/01/unpatched-vulnerability-0day-in-flash.html
  Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• secunia.com/advisories/62740
  Broken Link, third-party-advisory, x_refsource_SECUNIA, NIST National Vulnerability Database
• secunia.com/advisories/62432
  Broken Link, third-party-advisory, x_refsource_SECUNIA, NIST National Vulnerability Database

Elsewhere on this site

Related CVEs (same products)

• High CVE-2026-70341 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability Sep 11, 2026
• Medium CVE-2026-35429 Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability May 12, 2026
• High CVE-2026-31431 Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability KEV Apr 22, 2026
• Medium CVE-2026-33119 Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability Apr 10, 2026
• High CVE-2026-26133 M365 Copilot Information Disclosure Vulnerability Mar 16, 2026
• Low CVE-2025-62224 Microsoft Edge (Chromium-based) for Android Spoofing Vulnerability Jan 7, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No CWE classification.
• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2015-0311 is "Adobe Flash Player Remote Code Execution Vulnerability", rated Critical. It affects Flash Player (Adobe); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 9.8 describes technical severity. EPSS 85.59% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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