How severe is CVE-2006-2661?

CVE-2006-2661 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-2661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2661?

CVE-2006-2661 primarily affects Freetype. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-2661?

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

When was CVE-2006-2661 published?

CVE-2006-2661 was published on 2006-05-30 and last updated on 2026-06-16.

CVE-2006-2661

CVE-2006-2661 is a medium-severity vulnerability in Freetype with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Freetype
Published: 2006-05-30
Last modified: 2026-06-16

Description

ftutil.c in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a crafted font file that triggers a null dereference.

Frequently asked questions

What is CVE-2006-2661?: ftutil.c in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a crafted font file that triggers a null dereference.
How severe is CVE-2006-2661?: CVE-2006-2661 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-2661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2661?: CVE-2006-2661 primarily affects Freetype. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-2661?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-2661 published?: CVE-2006-2661 was published on 2006-05-30 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:freetype:freetype:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:5.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:5.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*

More vulnerabilities in Freetype

CVE-2012-1126 — Critical (CVSS 10.0): FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to…
CVE-2022-27404 — Critical (CVSS 9.8): FreeType commit 1e2eb65048f75c64b68708efed6ce904c31f3b2f was discovered to contain a heap buffer overflow via the…
CVE-2015-9290 — Critical (CVSS 9.8): In FreeType before 2.6.1, a buffer over-read occurs in type1/t1parse.c on function T1_Get_Private_Dict where there is…
CVE-2017-8287 — Critical (CVSS 9.8): FreeType 2 before 2017-03-26 has an out-of-bounds write caused by a heap-based buffer overflow related to the…
CVE-2017-8105 — Critical (CVSS 9.8): FreeType 2 before 2017-03-24 has an out-of-bounds write caused by a heap-based buffer overflow related to the…
CVE-2017-7864 — Critical (CVSS 9.8): FreeType 2 before 2017-02-02 has an out-of-bounds write caused by a heap-based buffer overflow related to the…

All CVEs affecting Freetype →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →