Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaM
Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via vectors involving a long JavaScript Array object.
- Published
- Jun 30, 2011
- Updated
- Jun 16, 2026
- EPSS
- 75.7% · 100th percentile
- CWE
- CWE-189
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Report tools
Action score
63
This week
Don’t wait for the next maintenance window.
- CVSS
- 40 / 40 · 10.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 23 / 30 · 75.7%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mozilla | seamonkey | cpe:2.3:a:mozilla:seamonkey |
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | thunderbird | cpe:2.3:a:mozilla:thunderbird |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- mozilla firefoxup to 3.6.17 inclusive
- mozilla firefox1.0
- mozilla firefox1.0.1
- mozilla firefox1.0.2
- mozilla firefox1.0.3
- mozilla firefox1.0.4
- mozilla firefox1.0.5
- mozilla firefox1.0.6
- mozilla firefox1.0.7
- mozilla firefox1.0.8
- mozilla firefox1.5
- mozilla firefox1.5.0.1
- mozilla firefox1.5.0.10
- mozilla firefox1.5.0.11
- mozilla firefox1.5.0.12
- mozilla firefox1.5.0.2
- mozilla firefox1.5.0.3
- mozilla firefox1.5.0.4
- mozilla firefox1.5.0.5
- mozilla firefox1.5.0.6
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:5.0 | xulrunner | before 1.9.0.19-12 | 1.9.0.19-12 |
| Debian:6.0 | iceape | before 2.0.11-6 | 2.0.11-6 |
| Debian:6.0 | icedove | before 3.0.11-1+squeeze3 | 3.0.11-1+squeeze3 |
| Debian:6.0 | iceweasel | before 3.5.16-8 | 3.5.16-8 |
| Red Hat:enterprise_linux:4::as | firefox | before 0:3.6.18-2.el4 | 0:3.6.18-2.el4 |
| Red Hat:enterprise_linux:4::as | firefox-debuginfo | before 0:3.6.18-2.el4 | 0:3.6.18-2.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-chat | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-debuginfo | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-devel | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-dom-inspector | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-js-debugger | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | seamonkey-mail | before 0:1.0.9-71.el4 | 0:1.0.9-71.el4 |
| Red Hat:enterprise_linux:4::as | thunderbird | before 0:1.5.0.12-39.el4 | 0:1.5.0.12-39.el4 |
| Red Hat:enterprise_linux:4::as | thunderbird-debuginfo | before 0:1.5.0.12-39.el4 | 0:1.5.0.12-39.el4 |
| Red Hat:enterprise_linux:5::client | thunderbird | before 0:2.0.0.24-18.el5_6 | 0:2.0.0.24-18.el5_6 |
| Red Hat:enterprise_linux:5::client | thunderbird-debuginfo | before 0:2.0.0.24-18.el5_6 | 0:2.0.0.24-18.el5_6 |
| Red Hat:enterprise_linux:5::server | firefox | before 0:3.6.18-1.el5_6 | 0:3.6.18-1.el5_6 |
| Red Hat:enterprise_linux:5::server | firefox-debuginfo | before 0:3.6.18-1.el5_6 | 0:3.6.18-1.el5_6 |
| Red Hat:enterprise_linux:5::server | xulrunner | before 0:1.9.2.18-2.el5_6 | 0:1.9.2.18-2.el5_6 |
| Red Hat:enterprise_linux:5::server | xulrunner-debuginfo | before 0:1.9.2.18-2.el5_6 | 0:1.9.2.18-2.el5_6 |
| Red Hat:enterprise_linux:5::server | xulrunner-devel | before 0:1.9.2.18-2.el5_6 | 0:1.9.2.18-2.el5_6 |
| Red Hat:enterprise_linux:6::server | firefox | before 0:3.6.18-1.el6_1 | 0:3.6.18-1.el6_1 |
| Red Hat:enterprise_linux:6::server | firefox-debuginfo | before 0:3.6.18-1.el6_1 | 0:3.6.18-1.el6_1 |
+3
Same product
mozilla: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-1710The crypto.generateCRMFRequest function in Mozilla Firefox before 23.0, Firefox ESR 17.x before 17.0.8, Thunderbird before 17.0.8, Thunderbi52Plan
- CVE-2013-5601Use-after-free vulnerability in the nsEventListenerManager::SetEventHandler function in Mozilla Firefox before 25.0, Firefox ESR 17.x before42Plan
- CVE-2013-5590Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 25.0, Firefox ESR 17.x before 17.0.10 and 24.x before 242Plan
- CVE-2013-1736The nsGfxScrollFrameInner::IsLTR function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbi42Plan
- CVE-2013-1702Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 23.0 and SeaMonkey before 2.20 allow remote attackers t42Plan
- CVE-2011-2363Use-after-free vulnerability in the nsSVGPointList::AppendElement function in the implementation of SVG element lists in Mozilla Firefox bef42Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:iceape | 2.0.11-6 · Debian:6.0 | Package registry (OSV) |
| debian:icedove | 3.0.11-1+squeeze3 · Debian:6.0 | Package registry (OSV) |
| debian:iceweasel | 3.5.16-8 · Debian:6.0 | Package registry (OSV) |
| debian:xulrunner | 1.9.0.19-12 · Debian:5.0 | Package registry (OSV) |
| red hat:firefox | 0:3.6.18-2.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:3.6.18-2.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey | 0:1.0.9-71.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey-chat | 0:1.0.9-71.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey-debuginfo | 0:1.0.9-71.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey-devel | 0:1.0.9-71.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:seamonkey-dom-inspector | 0:1.0.9-71.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:thunderbird | 0:1.5.0.12-39.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:thunderbird-debuginfo | 0:1.5.0.12-39.el4 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
| red hat:xulrunner | 0:1.9.2.18-2.el5_6 · Red Hat:enterprise_linux:5::server | Package registry (OSV) |
| red hat:xulrunner-debuginfo | 0:1.9.2.18-2.el5_6 · Red Hat:enterprise_linux:5::server | Package registry (OSV) |
| red hat:xulrunner-devel | 0:1.9.2.18-2.el5_6 · Red Hat:enterprise_linux:5::server | Package registry (OSV) |
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- Exploit-DB entry ×3
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2011-10-12 |
| Exploit-DB entry | remote | 2011-10-13 |
| Exploit-DB entry | remote | 2012-02-27 |
| Metasploit module | exploit/windows/browser/mozilla_reducerightMozilla Firefox Array.reduceRight() Integer Overflowexploit | 2011-06-21 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-10 d
- Published
- First PoC+103 d
- TodaySep 30, 2026+5571 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-189 · Numeric ErrorsCVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html
- secunia.com/advisories/45002
- securityreason.com/securityalert/8472
- support.avaya.com/css/P8/documents/100144854
- support.avaya.com/css/P8/documents/100145333
- www.debian.org/security/2011/dsa-2268
- www.debian.org/security/2011/dsa-2269
- www.debian.org/security/2011/dsa-2273
- www.mandriva.com/security/advisories?name=MDVSA-2011:111
- www.mozilla.org/security/announce/2011/mfsa2011-22.html
- www.redhat.com/support/errata/RHSA-2011-0885.html
- www.redhat.com/support/errata/RHSA-2011-0887.html
- www.redhat.com/support/errata/RHSA-2011-0888.html
- www.ubuntu.com/usn/USN-1149-1
- bugzilla.mozilla.org/show_bug.cgi?id=664009
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13987
Vendor advisories and official records. Exploit/PoC links are deliberately left out.