MEDIUM
Mozilla: Improper character decoding in HZ-GB-2312 charset (MFSA 2012-101)
Published Nov 21, 2012
4.3
MEDIUMCVSS 2.0
EPSS 2.78%
Description
The HZ-GB-2312 character-set implementation in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 does not properly handle a ~ (tilde) character in proximity to a chunk delimiter, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted document.
Affected products
No data.
Configuration 1
OR
- < 17.0
- ≥ 10.0 · < 10.0.11
- < 2.14
- < 17.0
- ≥ 10.0 · < 10.0.11
Configuration 2
OR
- 11.4
- 12.1
- 12.2
- 10
- 11
- 10
- 11
- 11
- 10
- 11
Configuration 3
OR
- 5.0
- 6.0
- 6.3
- 5.0
- 6.0
- 5.0
- 6.0
Configuration 4
OR
- 6.0
- 7.0
Configuration 5
OR
- 10.04
- 11.10
- 12.04
- 12.10
No data.
Red Hat Enterprise Linux 5
firefox-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 5
thunderbird-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1483
Red Hat Enterprise Linux 5
xulrunner-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 6
firefox-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 6
thunderbird-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1483
Red Hat Enterprise Linux 6
xulrunner-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1482
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 5 | thunderbird-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1483 |
| Red Hat Enterprise Linux 5 | xulrunner-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 6 | firefox-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 6 | thunderbird-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1483 |
| Red Hat Enterprise Linux 6 | xulrunner-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1482 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.78% 0.02781
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02781
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.78% (0.02781) | 85.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.78% (0.02781) | 84.46th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.71% (0.01708) | 80.64th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.08% (0.04077) | 80.62th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.41% (0.02407) | 83.98th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.90% (0.01903) | 88.24th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.82% (0.00821) | 82.58th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00324) | 69.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00324) | 66.06th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.93% (0.03932) | 85.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.93% (0.03932) | 84.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.93% (0.03932) | 67.70th | v2 (v2022.01.01) |
Weaknesses (1)
References (34)
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://osvdb.org/87587 vdb-entryx_refsource_OSVDBBroken Link
- http://rhn.redhat.com/errata/RHSA-2012-1482.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1483.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/51359 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51360 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51369 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51370 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51381 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51434 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51439 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51440 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.debian.org/security/2012/dsa-2583 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2012/dsa-2584 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2012/dsa-2588 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:173 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-101.html x_refsource_CONFIRMVendor Advisory
- http://www.palemoon.org/releasenotes-ng.shtml x_refsource_CONFIRMBroken Link
- http://www.securityfocus.com/bid/56632 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1636-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-3 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-4207 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=801681 x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=877629 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80179 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2012-4207
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16955 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2012-4207
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://osvdb.org/87587 | vdb-entryx_refsource_OSVDBBroken Link | |
| http://rhn.redhat.com/errata/RHSA-2012-1482.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2012-1483.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://secunia.com/advisories/51359 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51360 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51369 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51370 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51381 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51434 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51439 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51440 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.debian.org/security/2012/dsa-2583 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.debian.org/security/2012/dsa-2584 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.debian.org/security/2012/dsa-2588 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:173 | vendor-advisoryx_refsource_MANDRIVAThird Party Advisory | |
| http://www.mozilla.org/security/announce/2012/mfsa2012-101.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.palemoon.org/releasenotes-ng.shtml | x_refsource_CONFIRMBroken Link | |
| http://www.securityfocus.com/bid/56632 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-1636-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-1638-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-1638-2 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| http://www.ubuntu.com/usn/USN-1638-3 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2012-4207 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=801681 | x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=877629 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80179 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-4207 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16955 | vdb-entrysignaturex_refsource_OVALThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2012-4207 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 21, 2012
Updated Aug 6, 2024
Reserved Aug 8, 2012
Link CVE-2012-4207
CISA Vulnrichment
Updated n/a