CVE-2026-7322— Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | 115.35.1≤ 115.* | unaffected |
140.10.1≤ 140.* | unaffected | ||
150.0.1≤ * | unaffected | ||
| Mozilla | Thunderbird | 140.10.1≤ 140.* | unaffected |
150.0.1≤ * | unaffected |
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I. Basic Information for CVE-2026-7322
Vulnerability Information
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Vulnerability Title
Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1
Source: CVE Program / CVE List V5
Vulnerability Description
Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox和Mozilla Firefox ESR 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox和Mozilla Firefox ESR都是美国Mozilla基金会的产品。Mozilla Firefox是一款开源Web浏览器。Mozilla Firefox ESR是Firefox(Web浏览器)的一个延长支持版本。 Mozilla Firefox ESR 115.35.0版本、140.10.0版本和Mozilla Firefox 150.0.0版本存在缓冲区错误漏洞，该漏洞源于内存安全缺陷，可能导致内存损坏，进而可能被利用执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mozilla | Firefox | 115.35.1 ~ 115.* | - | |
| Mozilla | Thunderbird | 140.10.1 ~ 140.* | - |
II. Public POCs for CVE-2026-7322
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-7322 (6)
Same Patch Batch · Mozilla · 2026-04-28 · 5 CVEs total
| CVE-2026-7320 | Information disclosure due to incorrect boundary conditions in the Audio/Video component | |
| CVE-2026-7323 | Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 | |
| CVE-2026-7324 | Memory safety bugs fixed in Thunderbird 150.0.1 | |
| CVE-2026-7321 | Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component |
IV. Related Vulnerabilities
Same product: Firefox
- CVE-2026-18809
Information disclosure in Firefox for Android and Firefox Fo - CVE-2026-16361
Memory safety bugs fixed in Thunderbird ESR 140.13 - CVE-2026-16360
Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR - CVE-2026-16412
Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 1 - CVE-2026-16411
Memory safety bugs fixed in Firefox 153
Same vendor: Mozilla
- CVE-2026-18809
Information disclosure in Firefox for Android and Firefox Fo - CVE-2026-14899
Off-by-one out of bounds read in MIME header parser for forw - CVE-2026-16361
Memory safety bugs fixed in Thunderbird ESR 140.13 - CVE-2026-16360
Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR - CVE-2026-16412
Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 1
V. Comments for CVE-2026-7322
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