How severe is CVE-2019-18624?

CVE-2019-18624 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-18624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18624?

CVE-2019-18624 primarily affects Opera Mini. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-18624?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-18624 published?

CVE-2019-18624 was published on 2019-10-29 and last updated on 2026-06-17.

CVE-2019-18624

CVE-2019-18624 is a critical-severity vulnerability in Opera Mini with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Opera Mini
Published: 2019-10-29
Last modified: 2026-06-17

Description

Opera Mini for Android allows attackers to bypass intended restrictions on .apk file download/installation via an RTLO (aka Right to Left Override) approach, as demonstrated by misinterpretation of malicious%E2%80%AEtxt.apk as maliciouskpa.txt. This affects 44.1.2254.142553, 44.1.2254.142659, and 44.1.2254.143214.

Frequently asked questions

What is CVE-2019-18624?: Opera Mini for Android allows attackers to bypass intended restrictions on .apk file download/installation via an RTLO (aka Right to Left Override) approach, as demonstrated by misinterpretation of malicious%E2%80%AEtxt.apk as maliciouskpa.txt. This affects 44.1.2254.142553, 44.1.2254.142659, and 44.1.2254.143214.
How severe is CVE-2019-18624?: CVE-2019-18624 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-18624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18624?: CVE-2019-18624 primarily affects Opera Mini. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-18624?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-18624 published?: CVE-2019-18624 was published on 2019-10-29 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:opera:mini:44.1.2254.142553:*:*:*:*:android:*:*
cpe:2.3:a:opera:mini:44.1.2254.142659:*:*:*:*:android:*:*
cpe:2.3:a:opera:mini:44.1.2254.143214:*:*:*:*:android:*:*

More vulnerabilities in Opera Mini

CVE-2019-13607 — Medium (CVSS 6.1): The Opera Mini application through 16.0.14 for iOS has a UXSS vulnerability that can be triggered by performing…

All CVEs affecting Opera Mini →