CVE-2010-3312

CVE-2010-3312 is a medium-severity vulnerability in Gnome Epiphany with a CVSS 2.0 base score of 5.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.8)
• EPSS exploit prediction: 1% (60th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Gnome Epiphany
• Published: 2010-10-14
• Last modified: 2026-06-16

Description

Epiphany 2.28 and 2.29, when WebKit and LibSoup are used, unconditionally displays a closed-lock icon for any URL beginning with the https: substring, without any warning to the user, which allows man-in-the-middle attackers to spoof arbitrary https web sites via a crafted X.509 server certificate.

Frequently asked questions

What is CVE-2010-3312?

Epiphany 2.28 and 2.29, when WebKit and LibSoup are used, unconditionally displays a closed-lock icon for any URL beginning with the https: substring, without any warning to the user, which allows man-in-the-middle attackers to spoof arbitrary https web sites via a crafted X.509 server certificate.

How severe is CVE-2010-3312?

CVE-2010-3312 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2010-3312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3312?

CVE-2010-3312 primarily affects Gnome Epiphany. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3312?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-3312 published?

CVE-2010-3312 was published on 2010-10-14 and last updated on 2026-06-16.

References

• http://blog.fefe.de/?ts=b26ca29d
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=564690
• http://bugzilla-attachments.gnome.org/attachment.cgi?id=154330
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
• http://secunia.com/advisories/43068
• http://www.openwall.com/lists/oss-security/2010/09/17/10
• http://www.openwall.com/lists/oss-security/2010/09/17/12
• http://www.openwall.com/lists/oss-security/2010/09/17/13
• http://www.openwall.com/lists/oss-security/2010/09/17/5
• http://www.openwall.com/lists/oss-security/2010/09/17/6
• http://www.openwall.com/lists/oss-security/2010/09/20/2
• http://www.openwall.com/lists/oss-security/2010/09/21/5
• http://www.vupen.com/english/advisories/2011/0212
• https://bugzilla.gnome.org/show_bug.cgi?id=600663

Affected products (2)

• cpe:2.3:a:gnome:epiphany:2.28:*:*:*:*:*:*:*
• cpe:2.3:a:gnome:epiphany:2.29:*:*:*:*:*:*:*

More vulnerabilities in Gnome Epiphany

• CVE-2019-6251 — High (CVSS 8.1): WebKitGTK and WPE WebKit prior to version 2.24.1 are vulnerable to address bar spoofing upon certain JavaScript…
• CVE-2023-26081 — High (CVSS 7.5): In Epiphany (aka GNOME Web) through 43.0, untrusted web content can trick users into exfiltrating passwords, because…
• CVE-2022-29536 — High (CVSS 7.5): In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in…
• CVE-2018-12016 — High (CVSS 7.5): libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial of service…
• CVE-2018-11396 — High (CVSS 7.5): ephy-session.c in libephymain.so in GNOME Web (aka Epiphany) through 3.28.2.1 allows remote attackers to cause a denial…
• CVE-2017-1000025 — High (CVSS 7.5): GNOME Web (Epiphany) 3.23 before 3.23.5, 3.22 before 3.22.6, 3.20 before 3.20.7, 3.18 before 3.18.11, and prior…

All CVEs affecting Gnome Epiphany →