CVE Intelligence
High Input validation

CVE-2016-3092 — Improper Input Validation in Apache Software Foundation Commons Fileupload

The MultipartStream class in Apache Commons Fileupload before 1.3.2, as used in Apache Tomcat 7.x before 7.0.70, 8.x before 8.0.36, 8.5.x before 8.5.3, and 9.x before 9.0.0.M7 and other products, allows remote attackers to cause a denial of service (CPU consumption) via a long boundary string.

Published Jul 4, 2016 · Updated Oct 13, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: redhat

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 37.2% (30-day exploitation probability)+15
  • Technical severity (high)+6
  • Automatable exploitation (SSVC)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

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

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
37.17%
ahead of 99% of scored CVEs · Oct 14, 2026
Affects
Apache Software Foundation
Commons Fileupload and 5 more
CVSS base
7.5
High · 3 source(s)

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.

Exploitation
None
none · proof-of-concept · active
Automatable
Yes
can an attacker script the kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component

Remediation

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

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 (Apache Software Foundation Commons Fileupload, Apache Software Foundation Tomcat, Canonical Ubuntu Linux…).
  2. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
  3. Apply the fixed version or the patch documented under Remediation.
  4. EPSS ahead of 99% of scored CVEs: prioritize it in the patch queue.
  5. Search available logs for exploit probes matching the vulnerability class (input validation), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
Apache Software Foundation Commons Fileupload ≤ 1.3.1 Vulnerable NIST National Vulnerability Database
Apache Software Foundation Tomcat version 7.0.32version 7.0.5version 7.0.30version 7.0.29version 7.0.28version 7.0.27version 7.0.26version 7.0.25
and 78 more version 7.0.23version 7.0.22version 7.0.21version 7.0.20version 7.0.19version 7.0.16version 7.0.14version 7.0.12version 7.0.11version 7.0.10version 7.0.8version 7.0.6version 7.0.5-betaversion 7.0.65version 7.0.52version 7.0.64version 7.0.63version 7.0.62version 7.0.61version 7.0.59version 7.0.57version 7.0.56version 7.0.55version 7.0.54version 7.0.53version 7.0.33version 7.0.50version 7.0.47version 7.0.42version 7.0.41version 7.0.40version 7.0.39version 7.0.37version 7.0.35version 7.0.34version 8.0.0-rc5version 8.0.18version 8.0.17version 8.0.15version 8.0.14version 8.0.12version 8.0.11version 8.0.8version 8.0.5version 8.0.3version 8.0.1version 7.0.4version 8.0.0-rc2version 8.0.0-rc10version 8.0.0-rc1version 9.0.0-milestone6version 9.0.0-milestone4version 9.0.0-milestone3version 9.0.0-milestone1version 7.0.67version 7.0.68version 7.0.69version 8.0.21version 7.0.4-betaversion 7.0.2-betaversion 7.0.2version 7.0.1version 7.0.0-betaversion 7.0.0version 8.5.2version 8.5.0version 8.0.35version 8.0.33version 8.0.32version 8.0.30version 8.0.29version 8.0.28version 8.0.27version 8.0.26version 8.0.24version 8.0.23version 8.0.22version 8.0.20
Vulnerable NIST National Vulnerability Database
Canonical Ubuntu Linux version 12.04version 16.04version 15.10version 14.04 Vulnerable NIST National Vulnerability Database
Debian Debian Linux version 8.0 Vulnerable NIST National Vulnerability Database
Hp Icewall Identity Manager version 5.0 Vulnerable NIST National Vulnerability Database
Hp Icewall Sso Agent Option version 10.0 Vulnerable NIST National Vulnerability Database

Attack characteristics

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

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Every base score collected

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

ScoreVersionSeverityExpl.ImpactScored by
7.5 CVSS 3.1 High 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database
7.5 CVSS 3.1 High — — CISA-ADP via CVE Program (cve.org) e CISA ADP
7.5 CVSS 3.0 High 3.9 3.6 nvd@nist.gov via NIST National Vulnerability Database
7.8 CVSS 2.0 High 10.0 6.9 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (score shown at the top: 134c704f-9b21-4f2e-91b3-4a467353bcc0)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-20 · Improper Input Validation

Other CVEs with this weakness →

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 37.17%

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).
web/proxy/WAF logsnetwork IDS/IPS

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
  • CVSS changed · 7.5
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • 2016
  • CVE published
    Jul 4, 2016 · redhat

Source activity

Repeated readings are counted rather than listed.

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

References

49 on the record

Elsewhere on this site

Apache Software Foundation
every CVE for this vendor
Input validation
same class
CWE-20
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-73180 Apache Tomcat: Authenticated WebSocket session survives end of HTTP session Aug 25, 2026
  • CVE-2026-65927 Apache Tomcat: RewriteValve [N] restarts at the second rule and may bypass access control Aug 25, 2026
  • CVE-2026-68525 Apache Tomcat: Redirect after FORM auth may bypass method specific constraints Aug 25, 2026
  • CVE-2026-65905 Apache Tomcat: Limited replay attack possible with DIGEST authentication Aug 25, 2026
  • CVE-2026-65637 Apache Tomcat: HTTP/2 no-authority bypass of strict SNI validation - CVE-2026-32990 fix incomplete Aug 25, 2026
  • CVE-2026-65183 Apache Tomcat: TOCTOU when setting specific permissions for Unix Domain Sockets Aug 25, 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 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-2016-3092 is "Improper Input Validation in Apache Software Foundation Commons Fileupload", rated High. It affects Commons Fileupload (Apache Software Foundation); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.5 describes technical severity. EPSS 37.17% 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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