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CVE-2010-3257· NVD / CVE Program· CNA mitre

Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and we

Noroxi assessment

Priority: Monitor (action score 38/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.3% (FIRST EPSS); higher than 88.3% of all records.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.

CriticalCVSS 9.3 · v2.0—No exploit No fix recorded
Published
Sep 7, 2010
Updated
Jun 16, 2026
EPSS
3.3% · 88th percentile

Report tools

JSON

Action score

38

Monitor

Low priority for now.

CVSS
37 / 40 · 9.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.3%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2010-3257

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
googlechrome
webkitgtkwebkitgtk
applesafari
appleiphone os
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple iphone osbefore 4.2
  • apple safaribefore 4.1.3
  • apple safari5.0 and later · before 5.0.3
  • canonical ubuntu linux10.04
  • canonical ubuntu linux10.10
  • canonical ubuntu linux9.10
  • google chromebefore 6.0.472.53
  • webkitgtk webkitgtkbefore 1.2.6

Same product

google: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4863Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of boKEV
    95Now
  • CVE-2021-21224Type confusion in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker to execute arbitrary code inside a sandbox via a craftKEV
    90Now
  • CVE-2018-17463Incorrect side effect annotation in V8 in Google Chrome prior to 70.0.3538.64 allowed a remote attacker to execute arbitrary code inside a sKEV
    90Now

Published before and after this one in the same product

  • ← EarlierCVE-2010-3255Sep 7, 2010 · Google Chrome before 6.0.472.53 and webkitgtk before 1.2.6 do not properly handle counter nodes, which allows remote attackers to cause a de
    38Monitor
  • ← EarlierCVE-2010-3256Sep 7, 2010 · Google Chrome before 6.0.472.53 does not properly limit the number of stored autocomplete entries, which has unspecified impact and attack v
    17Monitor
  • Later →CVE-2010-3258Sep 7, 2010 · The sandbox implementation in Google Chrome before 6.0.472.53 does not properly deserialize parameters, which has unspecified impact and rem
    37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    C · data can be read
    Integrity
    C · data or configuration can be modified
    Availability
    C · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    C
    Integrity impact
    C
    Availability impact
    C

    Weakness class (CWE)

    CWE-416 · Use After Free

    CVSS vector

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

    nvd-primary

    Root cause

    After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

    The bug in code

    The whole CWE-416 class

    A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

    Vulnerable

    c
    free(dev->buf);/* ... another thread is still running ... */process(dev->buf);

    Fixed

    c
    lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

    References

    Show all references (19 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records