Push notifications saved to disk unencrypted
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
- BDU:2023-05178
- ALSA-2023:4952
- ALSA-2023:4954
- ALSA-2023:4955
- ALSA-2023:4958
- openSUSE-SU-2024:13176-1
- openSUSE-SU-2024:13202-1
- RHSA-2023:4945
- RHSA-2023:4946
- RHSA-2023:4947
- RHSA-2023:4948
- RHSA-2023:4949
- RHSA-2023:4950
- RHSA-2023:4951
- RHSA-2023:4952
- RHSA-2023:4954
- RHSA-2023:4955
- RHSA-2023:4956
- RHSA-2023:4957
- RHSA-2023:4958
- Published
- Sep 11, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.4% · 34th percentile
- CWE
- CWE-311
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Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| mozilla | firefox | cpe:2.3:a:mozilla:firefox |
| mozilla | firefox esr | cpe:2.3:a:mozilla:firefox_esr |
| 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 117.0
- mozilla firefox esrbefore 115.2
- mozilla thunderbirdbefore 115.2
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
- unspecified and later · before 117affected
Mozilla Firefox ESR
- unspecified and later · before 115.2affected
Mozilla Thunderbird
- unspecified and later · before 115.2affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | firefox | before 102.15.0-1.el8_8.alma | 102.15.0-1.el8_8.alma |
| AlmaLinux:8 | thunderbird | before 102.15.0-1.el8_8.alma | 102.15.0-1.el8_8.alma |
| AlmaLinux:9 | firefox | before 102.15.0-1.el9_2.alma | 102.15.0-1.el9_2.alma |
| AlmaLinux:9 | firefox-x11 | before 102.15.0-1.el9_2.alma | 102.15.0-1.el9_2.alma |
| AlmaLinux:9 | thunderbird | before 102.15.0-1.el9_2.alma | 102.15.0-1.el9_2.alma |
| Debian:13 | firefox-esr | before 115.2.0esr-1 | 115.2.0esr-1 |
| Debian:13 | thunderbird | before 1:115.2.0-1 | 1:115.2.0-1 |
| openSUSE:Tumbleweed | MozillaFirefox | before 117.0-1.1 | 117.0-1.1 |
| openSUSE:Tumbleweed | MozillaThunderbird | before 115.2.0-1.1 | 115.2.0-1.1 |
| Red Hat:enterprise_linux:7::client | firefox | before 0:102.15.0-1.el7_9 | 0:102.15.0-1.el7_9 |
| Red Hat:enterprise_linux:7::client | firefox-debuginfo | before 0:102.15.0-1.el7_9 | 0:102.15.0-1.el7_9 |
| Red Hat:enterprise_linux:7::client | thunderbird | before 0:102.15.0-1.el7_9 | 0:102.15.0-1.el7_9 |
| Red Hat:enterprise_linux:7::client | thunderbird-debuginfo | before 0:102.15.0-1.el7_9 | 0:102.15.0-1.el7_9 |
| Red Hat:enterprise_linux:8::appstream | firefox | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:8::appstream | firefox-debuginfo | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:8::appstream | firefox-debugsource | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:8::appstream | thunderbird | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:8::appstream | thunderbird-debuginfo | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:8::appstream | thunderbird-debugsource | before 0:102.15.0-1.el8_8 | 0:102.15.0-1.el8_8 |
| Red Hat:enterprise_linux:9::appstream | firefox | before 0:102.15.0-1.el9_2 | 0:102.15.0-1.el9_2 |
| Red Hat:enterprise_linux:9::appstream | firefox-debuginfo | before 0:102.15.0-1.el9_2 | 0:102.15.0-1.el9_2 |
| Red Hat:enterprise_linux:9::appstream | firefox-debugsource | before 0:102.15.0-1.el9_2 | 0:102.15.0-1.el9_2 |
| Red Hat:enterprise_linux:9::appstream | firefox-x11 | before 0:102.15.0-1.el9_2 | 0:102.15.0-1.el9_2 |
| Red Hat:enterprise_linux:9::appstream | thunderbird | before 0:102.15.0-1.el9_2 | 0:102.15.0-1.el9_2 |
+37
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 |
|---|---|---|
| almalinux:firefox | 102.15.0-1.el8_8.alma · AlmaLinux:8 | Package registry (OSV) |
| almalinux:firefox-x11 | 102.15.0-1.el9_2.alma · AlmaLinux:9 | Package registry (OSV) |
| almalinux:thunderbird | 102.15.0-1.el8_8.alma · AlmaLinux:8 | Package registry (OSV) |
| debian:firefox-esr | 115.2.0esr-1 · Debian:13 | Package registry (OSV) |
| debian:thunderbird | 1:115.2.0-1 · Debian:13 | Package registry (OSV) |
| opensuse:MozillaFirefox | 115.2.0-150200.152.102.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:MozillaThunderbird | 115.2.2-150200.8.130.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| red hat:firefox | 0:102.15.0-1.el8_1 · Red Hat:rhel_e4s:8.1::appstream | Package registry (OSV) |
| red hat:firefox-debuginfo | 0:102.15.0-1.el8_1 · Red Hat:rhel_e4s:8.1::appstream | Package registry (OSV) |
| red hat:firefox-debugsource | 0:102.15.0-1.el8_1 · Red Hat:rhel_e4s:8.1::appstream | Package registry (OSV) |
| red hat:firefox-x11 | 0:102.15.0-1.el9_2 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:thunderbird | 0:102.15.0-1.el7_9 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:thunderbird-debuginfo | 0:102.15.0-1.el7_9 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:thunderbird-debugsource | 0:102.15.0-1.el8_2 · Red Hat:rhel_aus:8.2::appstream | Package registry (OSV) |
| rocky linux:firefox | 0:102.15.0-1.el8_8 · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:thunderbird | 0:102.15.0-1.el8_8 · Rocky Linux:8 | Package registry (OSV) |
| suse:MozillaFirefox | 115.2.0-150200.152.102.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | Package registry (OSV) |
| suse:MozillaThunderbird | 115.2.2-150200.8.130.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP4 | 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.
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
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-311 · Missing Encryption of Sensitive DataCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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.
Attack patterns (CAPEC)
- Sniffing AttacksCAPEC-157Medium
- Sniffing Network TrafficCAPEC-158Medium
- Lifting Sensitive Data Embedded in CacheCAPEC-204Medium
- Accessing/Intercepting/Modifying HTTP CookiesCAPEC-31likelihood: High · High
- Retrieve Embedded Sensitive DataCAPEC-37likelihood: High · Very High
- Harvesting Information via API Event MonitoringCAPEC-383Low
- Application API Message Manipulation via Man-in-the-MiddleCAPEC-384Low
- Transaction or Event Tampering via Application API ManipulationCAPEC-385Medium
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✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- bugzilla.mozilla.org/show_bug.cgi?id=1843046
- www.mozilla.org/security/advisories/mfsa2023-34/
- www.mozilla.org/security/advisories/mfsa2023-36/
- www.mozilla.org/security/advisories/mfsa2023-38/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.