Sandbox escape due to invalid pointer in the Disability Access APIs component
Noroxi assessment
Priority: Plan (action score 40/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.37% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: mozilla-nspr (openSUSE:Leap 16.0) 4.39-160000.1.1; mozilla-nss (openSUSE:Leap 16.0) 3.125-160000.1.1; MozillaFirefox (openSUSE:Leap 16.0) 153.1.0-160000.1.2.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Add it to your regular patch cycle. Upgrade to mozilla-nspr (openSUSE:Leap 16.0) 4.39-160000.1.1; mozilla-nss (openSUSE:Leap 16.0) 3.125-160000.1.1; MozillaFirefox (openSUSE:Leap 16.0) 153.1.0-160000.1.2 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
- Published
- Jul 21, 2026
- Updated
- Jul 24, 2026
- EPSS
- 0.4% · 30th percentile
- CWE
- CWE-119
Report tools
Action score
40
Plan
Add it to your regular patch cycle.
- CVSS
- 40 / 40 · 10.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| 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 firefoxbefore 153.0.0
- mozilla thunderbirdbefore 153.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.
Mozilla Firefox
- 153 and laternot affected · rpm
Mozilla Thunderbird
- 153 and laternot affected · rpm
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| openSUSE:Leap 16.0 | mozilla-nspr | before 4.39-160000.1.1 | 4.39-160000.1.1 |
| openSUSE:Leap 16.0 | mozilla-nss | before 3.125-160000.1.1 | 3.125-160000.1.1 |
| openSUSE:Leap 16.0 | MozillaFirefox | before 153.1.0-160000.1.2 | 153.1.0-160000.1.2 |
| openSUSE:Leap 16.0 | rust-cbindgen | before 0.29.4+git0-160000.1.1 | 0.29.4+git0-160000.1.1 |
| openSUSE:Tumbleweed | MozillaFirefox | before 153.0-1.1 | 153.0-1.1 |
| SUSE:Linux Enterprise Micro 5.3 | mozilla-nspr | before 4.39-150400.12.3.1 | 4.39-150400.12.3.1 |
| SUSE:Linux Enterprise Micro 5.3 | mozilla-nss | before 3.125-150400.3.74.1 | 3.125-150400.3.74.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | MozillaFirefox | before 153.2.0-150400.157.5.1 | 153.2.0-150400.157.5.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | MozillaFirefox-branding-SLE | before 153-150400.14.3.1 | 153-150400.14.3.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP7 | MozillaThunderbird | before 153.2.0-150400.13.3.1 | 153.2.0-150400.13.3.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | mozilla-nspr | before 4.39-19.39.1 | 4.39-19.39.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | mozilla-nss | before 3.125-58.147.1 | 3.125-58.147.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | MozillaFirefox | before 153.2.0-118.5.4 | 153.2.0-118.5.4 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | MozillaFirefox-branding-SLE | before 153-41.3.8 | 153-41.3.8 |
| SUSE:Linux Enterprise Server 16.0 | MozillaFirefox | before 153.1.0-160000.1.1 | 153.1.0-160000.1.1 |
| SUSE:Linux Enterprise Server 16.0 | MozillaFirefox-branding-SLE | before 153-160000.1.1 | 153-160000.1.1 |
| SUSE:Linux Enterprise Server 16.0 | rust-cbindgen | before 0.29.4+git0-160000.1.1 | 0.29.4+git0-160000.1.1 |
| SUSE:Linux Micro 6.2 | mozilla-nspr | before 4.39-160000.1.1 | 4.39-160000.1.1 |
| SUSE:Linux Micro 6.2 | mozilla-nss | before 3.125-160000.1.1 | 3.125-160000.1.1 |
Same product
mozilla: all recordsOther highest-scoring records for the same primary product.
- CVE-2010-3765Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x befKEV94Now
- CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV87Now
- CVE-2015-4495The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypassKEV86Now
- CVE-2013-1690Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properKEV86Now
- CVE-2019-17026Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion.KEV79This week
- CVE-2024-9680An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines.KEV76This week
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 |
|---|---|---|
| opensuse:mozilla-nspr | 4.39-160000.1.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:mozilla-nss | 3.125-160000.1.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| opensuse:MozillaFirefox | 153.0-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:rust-cbindgen | 0.29.4+git0-160000.1.1 · openSUSE:Leap 16.0 | Package registry (OSV) |
| suse:mozilla-nspr | 4.39-160000.1.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:mozilla-nss | 3.125-160000.1.1 · SUSE:Linux Micro 6.2 | Package registry (OSV) |
| suse:MozillaFirefox | 153.1.0-160000.1.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:MozillaFirefox-branding-SLE | 153-160000.1.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
| suse:MozillaThunderbird | 153.2.0-150400.13.3.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP7 | Package registry (OSV) |
| suse:rust-cbindgen | 0.29.4+git0-160000.1.1 · SUSE:Linux Enterprise Server 16.0 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-2776147 days apartSandbox escape due to incorrect boundary conditions in the Telemetry component in External Software40Plan
- CVE-2026-2778147 days apartSandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component40Plan
- CVE-2026-163500 days apartIncorrect boundary conditions in the Audio/Video: cubeb component39Monitor
- CVE-2026-163610 days apartMemory safety bugs fixed in Thunderbird ESR 140.1339Monitor
- CVE-2026-164110 days apartMemory safety bugs fixed in Firefox 15339Monitor
- CVE-2026-164120 days apartMemory safety bugs fixed in Firefox ESR 140.13 and Firefox 15339Monitor
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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0600 · Jul 22, 2026(Mozilla Firefox Güvenlik Bildirimi)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (2 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.