CVE-2026-2378

Q: How do I fix CVE-2026-2378?

Upgrade arc search to 1.12.7 or later.

Q: Is CVE-2026-2378 being actively exploited?

Not that we know of. CVE-2026-2378 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.17% is the estimated probability that it will be exploited in the next 30 days. That is higher than 7% of all scored CVEs.

Q: How severe is CVE-2026-2378?

CVE-2026-2378 has a CVSS v3 base score of 7.4, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-2378 affect?

Published advisories record a fix for arc search (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.4

CVSS v3

NVD

Description

ArcSearch for Android versions prior to 1.12.7 could display a different domain in the address bar than the content being shown, enabling address bar spoofing after user interaction via crafted web content.

CWE-1021

How to fix

Remediation Available

arc searchNVD

Affected:< 1.12.7Fixed in:1.12.7CVE-2026-2378derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.17%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Vendor Advisory1

arc.net

Related Vulnerabilities

Other CWE-1021 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-21132	Critical	9.6	23%	-	Fix
CVE-2011-1244	Medium	5.8	15%	-	-
CVE-2013-2682	Medium	4.3	6.3%	-	-
CVE-2021-21139	Medium	6.5	4.7%	-	Fix
CVE-2017-11290	Medium	6.1	3.0%	-	-
CVE-2008-2716	Medium	5.0	3.0%	-	Fix

Common questions

How do I fix CVE-2026-2378?

Upgrade arc search to 1.12.7 or later.

Is CVE-2026-2378 being actively exploited?

Not that we know of. CVE-2026-2378 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.17% is the estimated probability that it will be exploited in the next 30 days. That is higher than 7% of all scored CVEs.

How severe is CVE-2026-2378?

CVE-2026-2378 has a CVSS v3 base score of 7.4, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-2378 affect?

Published advisories record a fix for arc search (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-2378

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.