CVE-2018-12391

highpriority · track · 36OT risk · elevatedEPSS 0.021 · 82 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.09% (82nd) EPSS

CVSS 9.3 · high

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.1highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USprimaryCWE-254US

affected products (12)

Products and version ranges known to be affected.

Mozilla Firefoxunspecified → 63enisa_euvdEU
Mozilla Firefox ESRunspecified → 60.3enisa_euvdEU
Mozilla Thunderbirdunspecified → 60.3enisa_euvdEU
Mozilla Corp. Firefox≤ 63fstec_bduRU
Mozilla Corp. Firefox ESR≤ 60.3fstec_bduRU
Mozilla Corp. Thunderbird≤ 60.3fstec_bduRU
АО «ИВК» Альт 8 СП Рабочая станцияall versionsfstec_bduRU
АО «ИВК» Альт 8 СП Серверall versionsfstec_bduRU
АО «ИВК» Альт Линукс СПТ≤ 7.0fstec_bduRU
mozilla firefox< 63.0nvdUScpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozilla firefox esr< 60.3nvdUScpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
mozilla thunderbird< 60.3nvdUScpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2019-02-28modified 2026-06-17

related (5,009)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-71362US	—OT critical	90.5% (100th)	KEV	2026-08-11
Adobe Commerce is affected by an Incorrect Authorization vulnerability that could result in privilege escalation. An attacker could leverage this vulnerability to gain elevated acc…
CVE-2026-42016US	high8.8OT critical	8.64% (95th)	KEV	2026-07-27
JFrog Artifactory (Self Hosted) versions before 7.133.11 are vulnerable to a privilege escalation attack due to a validation check of the token signature/issuer and not the token’s…
CVE-2025-55177US	—OT critical	13.1% (96th)	KEV	2025-08-29
Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78…
CVE-2025-54253US	—OT critical	88.8% (100th)	KEV	2025-08-05
Adobe Experience Manager versions 6.5.23 and earlier are affected by a Misconfiguration vulnerability that could result in arbitrary code execution. An attacker could leverage this…
CVE-2025-21479US	—OT critical	0.84% (58th)	KEV	2025-06-03
Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.

+5004 more

references (41)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan