Skip to content
Noroxi
NVD / CVE Program· CNA mozilla

CVE-2023-29545: Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have reso

Noroxi assessment

Priority: Monitor (action score 26/100)

  • 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: 0.58% (FIRST EPSS).
  • 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.
  • Fixed version: MozillaFirefox (openSUSE:Leap 15.4) 102.10.0-150200.152.84.1; MozillaThunderbird (openSUSE:Leap 15.4) 102.10.1-150200.8.113.2; MozillaFirefox (openSUSE:Tumbleweed) 112.0.1-1.1.

Low priority for now. Upgrade to MozillaFirefox (openSUSE:Leap 15.4) 102.10.0-150200.152.84.1; MozillaThunderbird (openSUSE:Leap 15.4) 102.10.1-150200.8.113.2; MozillaFirefox (openSUSE:Tumbleweed) 112.0.1-1.1 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

Primary sources: NVD · CVE.org · FIRST EPSS

Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Jun 19, 2023
Updated
Oct 24, 2026
EPSS
0.5% · 47th percentile
CWE
—

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
6.5
CNA · mozilla
6.5
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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.

Follow CVE-2023-29545

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for mozilla records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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 help

Affected 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.

VendorProduct
mozillafirefox
mozillafirefox esr
mozillathunderbird

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mozilla firefoxbefore 112.0
  • mozilla firefox esrbefore 102.10
  • mozilla thunderbirdbefore 102.10

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 112affected

  • Mozilla Firefox ESR

    • unspecified and later · before 102.10affected

  • Mozilla Thunderbird

    • unspecified and later · before 102.10affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
openSUSE:Leap 15.4MozillaFirefoxbefore 102.10.0-150200.152.84.1102.10.0-150200.152.84.1
openSUSE:Leap 15.4MozillaThunderbirdbefore 102.10.1-150200.8.113.2102.10.1-150200.8.113.2
openSUSE:TumbleweedMozillaFirefoxbefore 112.0.1-1.1112.0.1-1.1
openSUSE:TumbleweedMozillaThunderbirdbefore 102.10.0-1.1102.10.0-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSSMozillaFirefoxbefore 102.10.0-150000.150.82.1102.10.0-150000.150.82.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP4MozillaFirefoxbefore 102.10.0-150200.152.84.1102.10.0-150200.152.84.1
SUSE:Linux Enterprise Module for Package Hub 15 SP4MozillaThunderbirdbefore 102.10.1-150200.8.113.2102.10.1-150200.8.113.2
SUSE:OpenStack Cloud 9MozillaFirefoxbefore 102.10.0-112.156.1102.10.0-112.156.1

Same product

mozilla: all records

Other 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 befKEV
    94Now
  • CVE-2019-11708Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxeKEV
    87Now
  • 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 bypassKEV
    86Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-32214Jun 19, 2023 · Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service.
    30Monitor
  • ← EarlierCVE-2023-29542Jun 19, 2023 · A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as
    39Monitor
  • Later →CVE-2023-34414Jun 19, 2023 · The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialo
    12Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
opensuse:MozillaFirefox102.10.0-150200.152.84.1 · openSUSE:Leap 15.4Package registry (OSV)
opensuse:MozillaThunderbird102.10.1-150200.8.113.2 · openSUSE:Leap 15.4Package registry (OSV)
suse:MozillaFirefox102.10.0-150000.150.82.1 · SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSSPackage registry (OSV)
suse:MozillaFirefox102.10.0-150200.152.84.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP4Package registry (OSV)
suse:MozillaThunderbird102.10.1-150200.8.113.2 · SUSE:Linux Enterprise Module for Package Hub 15 SP4Package 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.

No history yet (it accumulates with the daily EPSS job).

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 researchers

Finders, 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
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records