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CVE-2010-1771

29
FAUCET Score

CVE-2010-1771 describes a use-after-free vulnerability in WebKit, affecting Apple Safari on various Mac OS X and Windows versions. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service via specially crafted fonts. With a CVSS score of 9.3, it is considered critical due to its network-based attack vector, medium complexity, and complete impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.5CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:4.0:*:*:*:*:*:*:*
4.0.0bCPE matchmatch criteria
cpe:2.3:a:apple:safari:4.0.0b:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:a:apple:safari:4.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.35%
Probability of exploitation in next 30 days
EPSS Percentile
92.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0635 is in the 67th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

applevendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: qt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: webkitgtk

Vendor Advisories (1)

redhatCVE-2010-1771Critical

WebKit: use-after-free vulnerability in font handling

Jun 7, 2010

References

lists.apple.com / archives/security-announce/2010/Jun/msg00000.html
PatchVendor Advisory
lists.apple.com / archives/security-announce/2010//Jun/msg00002.html
lists.apple.com / archives/security-announce/2010//Nov/msg00003.html
lists.apple.com / archives/security-announce/2010//Sep/msg00002.html
lists.opensuse.org / opensuse-security-announce/2011-01/msg00006.html
secunia.com / advisories/40105
Vendor Advisory
secunia.com / advisories/40196
secunia.com / advisories/41856
secunia.com / advisories/42314
secunia.com / advisories/43068
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/59214
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6862
support.apple.com / kb/HT4196
Vendor Advisory
support.apple.com / kb/HT4220
support.apple.com / kb/HT4334
support.apple.com / kb/HT4456
mandriva.com / security/advisories
securityfocus.com / bid/40620
Patch
ubuntu.com / usn/USN-1006-1
vupen.com / english/advisories/2010/1373
PatchVendor Advisory
vupen.com / english/advisories/2010/1512
vupen.com / english/advisories/2010/2722
vupen.com / english/advisories/2011/0212
vupen.com / english/advisories/2011/0552