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Full vulnerability report · 2015
CVE-2015-7193High confidence

Affected product: security vulnerability

Unknown · Unknown

7.5HighCVSS 2.0
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 2.84% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Unknown and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2015-7193 · CSAF 2.0 · revision 24 · interimSUSE Product Security TeamCVE-2015-7193
5 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • mozilla-nspr as component of SUSE Linux Enterprise Server 11 SP1 for Teradata
  • mozilla-nss as component of SUSE Linux Enterprise Server 11 SP1 for Teradata
  • mozilla-nss as component of SUSE Linux Enterprise Server 11 SP3 for Teradata
  • MozillaFirefox as component of SUSE Linux Enterprise Server 11 SP4 LTSS
  • mozilla-nss as component of SUSE Linux Enterprise Server 11 SP4 LTSS
Summary
Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly follow the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation, which allows remote attackers to bypass the Same Origin Policy by leveraging the lack of a preflight-request step.
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2015-7125

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly follow the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation, which allows remote attackers to bypass the Same Origin Policy by leveraging the lack of a preflight-request step.

What

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly follow the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation, which allows remote attackers to bypass the Same Origin Policy by leveraging the lack of a preflight-request step.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly follow the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation, which allows remote attackers to bypass the Same Origin Policy by leveraging the lack of a preflight-request step.

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
the affected interface → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Unspecified
Privileges required
None: unauthenticated exploitation is possible
User interaction
Not stated in the selected CVSS metric
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Not stated in the selected CVSS metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-254 ↗

CWE-254. Open the MITRE definition for the exact weakness description.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
AV:N/AC:L/Au:N/C:P/I:P/A:P
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-254
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

CERT-FR · French · CERTFR-2015-AVI-461Multiples vulnérabilités dans Mozilla Firefox

.cve.org/CVERecord?id=CVE-2015-7183 Référence CVE CVE-2015-7185 https://www.cve.org/CVERecord?id=CVE-2015-7185 Référence CVE CVE-2015-7186 https://www.cve.org/CVERecord?id=CVE-2015-7186 Référence CVE CVE-2015-7187 https://www.cve.org/CVERecord?id=CVE-2015-7187 Référence CVE CVE-2015-7188 https://www.cve.org/CVERecord?id=CVE-2015-7188 Référence CVE CVE-2015-7189 https://www.cve.org/CVERecord?id=CVE-2015-7189 Référence CVE CVE-2015-7190 https://www.cve.org/CVERecord?id=CVE-2015-7190 Référence CVE CVE-2015-7191 https://www.cve.org/CVERecord?id=CVE-2015-7191 Référence CVE CVE-2015-7192 https://www.cve.org/CVERecord?id=CVE-2015-7192 Référence CVE CVE-2015-7193 https://www.cve.org/CVERecord?id=CVE-2015-7193 Référence CVE CVE-2015-7194 https://www.cve.org/CVERecord?id=CVE-2015-7194 Référence CVE CVE-2015-7195 https://www.cve.org/CVERecord?id=CVE-2015-7195 Référence CVE CVE-2015-7196 https://www.cve.org/CVERecord?id=CVE-2015-7196 Référence CVE CVE-2015-7197 https://www.cve.org/CVERecord?id=CVE-2015-7197 Référence CVE CVE-2015-7198 https://www.cve.org/CVERecord?id=CVE-2015-7198 Référence CVE CVE-2015-7199 https://www.cve.org/CVERecord?id=CVE-2015-7199 Référence CVE CVE-2015-7200 https://www.cve.org/CVERecord?id=CVE-2015-7200 Gestion détaillée du document le 04 novembre 2015 version initiale. Alertes A

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2015-005756Mozilla Firefox における同一生成元ポリシーを回避される脆弱性

Mozilla Firefox は、不特定の Content-Type ヘッダ操作を伴う状況において POST メソッドに対する CORS のクロスオリジンリクエストのアルゴリズムに適切に従わないため、同一生成元ポリシーを回避される脆弱性が存在します。 補足情報 : CWE による脆弱性タイプは、CWE-254: Security Features (セキュリティ機能) と識別されています。 http://cwe.mitre.org/data/definitions/254.html

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 5 Nov 2015 · Last source change 6 Aug 2024, 07:43 UTC · CWE-254

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-09-01
European sourceENISA EUVD · EUVD-2015-7125
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    SUSE Product Security Team ↗
  2. ENISA EUVD mappingEUVD-2015-7125 was added to the official ENISA EUVD mapping for this CVE.
    Before
    not recorded
    After
    {"euvdId":"EUVD-2015-7125"}
    ENISA EUVD ↗
  3. Vendor guidanceAuthoritative vendor guidance changed: added vendor advisory: mozilla.org/mfsa2015-127.html; removed vendor advisory: debian.org/dsa-3393; removed vendor advisory: debian.org/dsa-3410; 12 further removals.
    Before
    vendor advisory: debian.org/dsa-3393 · vendor advisory: debian.org/dsa-3410 · vendor advisory: lists.opensuse.org/msg00013.html · 11 more references
    After
    vendor advisory: mozilla.org/mfsa2015-127.html
    mozilla.org ↗
  4. SeveritySeverity changed from Unknown to High.
    Before
    Unknown
    After
    High
    NIST NVD ↗
  5. CVSS scoreCVSS score changed from not recorded to 7.5 (CVSS 2.0 · NIST NVD · AV:N/AC:L/Au:N/C:P/I:P/A:P).
    Before
    not recorded
    After
    7.5 (CVSS 2.0 · NIST NVD · AV:N/AC:L/Au:N/C:P/I:P/A:P)
    NIST NVD ↗
  6. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2015-7125↗SUSE Product Security Team security advisory↗Vendor advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2015-7193 · cve.blacktree.nl