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Vulnerability details: VCID-2paw-5vw1-jkbj
Vulnerability ID VCID-2paw-5vw1-jkbj
Aliases CVE-2025-26696
Summary Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-451 User Interface (UI) Misrepresentation of Critical Information
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26696.json
epss 0.00076 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
epss 0.00129 https://api.first.org/data/v1/epss?cve=CVE-2025-26696
cvssv3.1 7 https://bugzilla.mozilla.org/show_bug.cgi?id=1864205
ssvc Track https://bugzilla.mozilla.org/show_bug.cgi?id=1864205
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2025-17
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2025-18
cvssv3.1 7 https://www.mozilla.org/security/advisories/mfsa2025-17/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-17/
cvssv3.1 7 https://www.mozilla.org/security/advisories/mfsa2025-18/
ssvc Track https://www.mozilla.org/security/advisories/mfsa2025-18/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26696.json
https://api.first.org/data/v1/epss?cve=CVE-2025-26696
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-26696
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2351157 https://bugzilla.redhat.com/show_bug.cgi?id=2351157
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
CVE-2025-26696 https://nvd.nist.gov/vuln/detail/CVE-2025-26696
mfsa2025-17 https://www.mozilla.org/en-US/security/advisories/mfsa2025-17
mfsa2025-17 https://www.mozilla.org/security/advisories/mfsa2025-17/
mfsa2025-18 https://www.mozilla.org/en-US/security/advisories/mfsa2025-18
mfsa2025-18 https://www.mozilla.org/security/advisories/mfsa2025-18/
show_bug.cgi?id=1864205 https://bugzilla.mozilla.org/show_bug.cgi?id=1864205
USN-7663-1 https://usn.ubuntu.com/7663-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-26696.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1864205
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-11T19:15:27Z/ Found at https://bugzilla.mozilla.org/show_bug.cgi?id=1864205
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L Found at https://www.mozilla.org/security/advisories/mfsa2025-17/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-11T19:15:27Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-17/
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L Found at https://www.mozilla.org/security/advisories/mfsa2025-18/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-11T19:15:27Z/ Found at https://www.mozilla.org/security/advisories/mfsa2025-18/
Exploit Prediction Scoring System (EPSS)
Percentile 0.23356
EPSS Score 0.00076
Published At Aug. 6, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:25.197020+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2025/mfsa2025-18.yml 37.0.0